Campbell Barton
5de109cc2d
In almost all cases there is no difference between `G.relbase_valid` and checking `G.main->filepath` isn't an empty string. In many places a non-empty string is already being used instead of `G.relbase_valid`. The only situation where this was needed was when saving from `wm_file_write` where they temporarily became out of sync. This has been replaced by adding a new member to `BlendFileWriteParams` to account for saving an unsaved file for the first time. Reviewed By: brecht Ref D13564