Bastien Montagne
69a7015e12
Our beloved shapekeys are 'virtual' overrides, they need special snowflake treatment here as well. They do not have any override data, from override perspective they are considered as mere sub-data from their owning ID (mesh, lattice, etc.). Therefore, we should not copy override data from them, but instead properly flag those new IDs as `LIB_EMBEDDED_DATA_LIB_OVERRIDE`. Found while investigating T84373.