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Would crash when adding or removing a collection directly to the master collection of a scene. Consequence of change to handle depsgraph-controlled evaluation of some IDs (like excluded collections which do not get evaluated and do not get a COW anymore). See rBcf4258673755 and D10907. Note that this mostly demonstrates once again how weak and flacky our handling of embedded IDs still remains, with some part of the code handling them as independent IDs, some as fully local/private data, some as a mix of both... and lots and lots of custom handling code and corner cases that are a bottomless pit of issues. Also quiet incredible that this was not reported already, luckily this original change did not make it to 2.93 release.
.. Keep this document short & concise, linking to external resources instead of including content in-line. See 'release/text/readme.html' for the end user read-me. Blender ======= Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline-modeling, rigging, animation, simulation, rendering, compositing, motion tracking and video editing. .. figure:: https://code.blender.org/wp-content/uploads/2018/12/springrg.jpg :scale: 50 % :align: center Project Pages ------------- - `Main Website <http://www.blender.org>`__ - `Reference Manual <https://docs.blender.org/manual/en/latest/index.html>`__ - `User Community <https://www.blender.org/community/>`__ Development ----------- - `Build Instructions <https://wiki.blender.org/wiki/Building_Blender>`__ - `Code Review & Bug Tracker <https://developer.blender.org>`__ - `Developer Forum <https://devtalk.blender.org>`__ - `Developer Documentation <https://wiki.blender.org>`__ License ------- Blender as a whole is licensed under the GNU General Public License, Version 3. Individual files may have a different, but compatible license. See `blender.org/about/license <https://www.blender.org/about/license>`__ for details.