Releases the memory a data handle is holding onto when exporting meshes.

[AramAzhari-adsk]

When exporting the entire scene, a data handle is used to create objects for writing meshes. When the user tries to export all again, the previous handle is not cleaned up and this results in a memory leak. The fix is to destruct the handle after use so that the memory does not increase after repetition.

[seando-adsk]

Can you also search thru the maya-usd repo and make sure there are no other uses asMDataHandle()

[AramAzhari-adsk]

Can you also search thru the maya-usd repo and make sure there are no other uses asMDataHandle()

@seando-adsk
There are two instances of this:

maya-usd/lib/mayaUsd/render/vp2RenderDelegate/mayaPrimCommon.cpp

Line 702 in 97f96aa

const float3& rgbColor = colorRGB.asMDataHandle().asFloat3();

maya-usd/lib/usd/translators/meshWriter.cpp

Line 572 in 97f96aa

.asMDataHandle(); // NOTE: (yliangsiew) This should be the pref mesh.

Should we check them in as part of the current jira ?