fix: Check for bindableProperty nullptr in TransitionViewModelCondition (#11653) aa788cab46 Co-authored-by: Philip Chung <philterdesign@gmail.com>

diff --git a/.rive_head b/.rive_head
index 5d10c63..bb099fd 100644
--- a/.rive_head
+++ b/.rive_head

@@ -1 +1 @@
-c0ee8aa205463c65eb307d080491ae05e1df8538
+aa788cab462e8de4438e619a4047c7e6e39fcabb

diff --git a/include/rive/animation/transition_property_viewmodel_comparator.hpp b/include/rive/animation/transition_property_viewmodel_comparator.hpp
index 2df3702..0043c50 100644
--- a/include/rive/animation/transition_property_viewmodel_comparator.hpp
+++ b/include/rive/animation/transition_property_viewmodel_comparator.hpp

@@ -32,7 +32,7 @@
     BindableProperty* bindableProperty() { return m_bindableProperty; }
 
 protected:
-    BindableProperty* m_bindableProperty;
+    BindableProperty* m_bindableProperty = nullptr;
 };
 } // namespace rive
 

diff --git a/src/animation/transition_viewmodel_condition.cpp b/src/animation/transition_viewmodel_condition.cpp
index 5b29cc4..77eb304 100644
--- a/src/animation/transition_viewmodel_condition.cpp
+++ b/src/animation/transition_viewmodel_condition.cpp

@@ -285,6 +285,11 @@
                     rightComparator()
                         ->as<TransitionPropertyViewModelComparator>()
                         ->bindableProperty();
+                if (rightBindableProperty == nullptr)
+                {
+                    m_comparison = new ConditionComparisonNone();
+                    return;
+                }
                 if (rightBindableProperty->is<BindablePropertyNumber>())
                 {
                     auto leftComparand =
@@ -328,6 +333,11 @@
             leftComparator()
                 ->as<TransitionPropertyViewModelComparator>()
                 ->bindableProperty();
+        if (leftBindableProperty == nullptr)
+        {
+            m_comparison = new ConditionComparisonNone();
+            return;
+        }
         if (rightComparator()->is<TransitionSelfComparator>())
         {
             m_comparison = new ConditionComparisonSelf(leftBindableProperty);
@@ -344,6 +354,10 @@
                         rightComparator()
                             ->as<TransitionPropertyViewModelComparator>()
                             ->bindableProperty();
+                    if (rightBindableProperty == nullptr)
+                    {
+                        break;
+                    }
                     if (rightBindableProperty->is<BindablePropertyNumber>())
                     {
                         auto leftComparand =
@@ -404,6 +418,10 @@
                         rightComparator()
                             ->as<TransitionPropertyViewModelComparator>()
                             ->bindableProperty();
+                    if (rightBindableProperty == nullptr)
+                    {
+                        break;
+                    }
                     if (rightBindableProperty->is<BindablePropertyBoolean>())
                     {
                         auto leftComparand =
@@ -446,6 +464,10 @@
                         rightComparator()
                             ->as<TransitionPropertyViewModelComparator>()
                             ->bindableProperty();
+                    if (rightBindableProperty == nullptr)
+                    {
+                        break;
+                    }
                     if (rightBindableProperty->is<BindablePropertyString>())
                     {
                         auto leftComparand =
@@ -488,6 +510,10 @@
                         rightComparator()
                             ->as<TransitionPropertyViewModelComparator>()
                             ->bindableProperty();
+                    if (rightBindableProperty == nullptr)
+                    {
+                        break;
+                    }
                     if (rightBindableProperty->is<BindablePropertyColor>())
                     {
                         auto leftComparand =
@@ -530,6 +556,10 @@
                         rightComparator()
                             ->as<TransitionPropertyViewModelComparator>()
                             ->bindableProperty();
+                    if (rightBindableProperty == nullptr)
+                    {
+                        break;
+                    }
                     if (rightBindableProperty->is<BindablePropertyEnum>())
                     {
                         auto leftComparand = new ConditionComparandEnumBindable(
@@ -567,6 +597,10 @@
                         rightComparator()
                             ->as<TransitionPropertyViewModelComparator>()
                             ->bindableProperty();
+                    if (rightBindableProperty == nullptr)
+                    {
+                        break;
+                    }
                     if (rightBindableProperty->is<BindablePropertyTrigger>())
                     {
                         auto leftComparand =
@@ -602,6 +636,10 @@
                         rightComparator()
                             ->as<TransitionPropertyViewModelComparator>()
                             ->bindableProperty();
+                    if (rightBindableProperty == nullptr)
+                    {
+                        break;
+                    }
                     if (rightBindableProperty->is<BindablePropertyInteger>())
                     {
                         auto leftComparand =
@@ -663,6 +701,10 @@
                         rightComparator()
                             ->as<TransitionPropertyViewModelComparator>()
                             ->bindableProperty();
+                    if (rightBindableProperty == nullptr)
+                    {
+                        break;
+                    }
                     if (rightBindableProperty->is<BindablePropertyAsset>())
                     {
                         auto leftComparand =
@@ -705,6 +747,10 @@
                         rightComparator()
                             ->as<TransitionPropertyViewModelComparator>()
                             ->bindableProperty();
+                    if (rightBindableProperty == nullptr)
+                    {
+                        break;
+                    }
                     if (rightBindableProperty->is<BindablePropertyArtboard>())
                     {
                         auto leftComparand =