6aa21ed752
The IMB_dupImBuf() function does not copy the GPU texture as it might not be possible if the GPU context is not active, but it also was not clearing the pointer in the result ImBuf. This could potentially lead to situation when the texture gets freed via IMB_freeImBuf of either original or copied image buffer, leaving the other pointing to a freed GPU texture. It is not known whether it ever was an actual problem for artists, but it is nice to avoid such possibility. Pull Request: https://projects.blender.org/blender/blender/pulls/119469
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