Fix an issue where the depth format in MVKCmdClearImage was not getting set correctly.
diff --git a/MoltenVK/MoltenVK/Commands/MVKCmdTransfer.mm b/MoltenVK/MoltenVK/Commands/MVKCmdTransfer.mm
index 2e84f06..d80afbe 100644
--- a/MoltenVK/MoltenVK/Commands/MVKCmdTransfer.mm
+++ b/MoltenVK/MoltenVK/Commands/MVKCmdTransfer.mm
@@ -875,6 +875,7 @@
 
     if (_isDepthStencilClear) {
         _rpsKey.enable(kMVKAttachmentFormatDepthStencilIndex);
+        _rpsKey.attachmentMTLPixelFormats[kMVKAttachmentFormatDepthStencilIndex] = _image->getMTLPixelFormat();
         float mtlDepthVal = mvkMTLClearDepthFromVkClearValue(clearValue);
         _clearColors[kMVKAttachmentFormatDepthStencilIndex] = { mtlDepthVal, mtlDepthVal, mtlDepthVal, mtlDepthVal };
         _mtlStencilValue = mvkMTLClearStencilFromVkClearValue(clearValue);