Blender Git Loki

Particle edit: Fix crash when trying to edit particles without cache

Particles in EMITTER mode needs to have cache.

Fix update issue in VPaint mode.

Need to flush the changes through DEG CoW, otherwise drawing code would
not see them in some cases...

Depsgraph: Silence relations builder errors

Were caused by depsgraph trying to create relations between objects
which are coming from restricted collection.

Depsgraph: Expand object data datablocks for drivers

Drivers can reference object data datablock directly, and if there
was no object in the scene with that datablock, blender will crash.

Depsgraph: Handle key->object relations from object builder

Depsgraph: Object data separation, armature

Depsgraph: Object data separation, geometry

Depsgraph: Object data separation, camera

Depsgraph: Object data separation, lamp

Depsgraph: Object data separation, light probes

This is a beginning of series of commits which will clearly separate
building IDs which are used as object data from object building.

The goal is to be able to always build whatever ID. Required to make
driver targets to work reliably with copy-on-write concept.

Depsgraph: Remove confusing metaball logic

DATA datablock must evaluation must never depend on object it is
used for. If there is something what depends on an object, it must
be done on object level.

At least the actual callback was empty.

Wireframe: Fix do_version.

Ensure BKE_mesh_new_nomain_from_template() always has valid mxxx pointers

When the source mesh doesn't have the primary layers (CD_VERT for vdata,
etc.) the returned mesh also didn't have those layers, even when non-zero
elements were requested (for example requesting 4 vertices would still
result in mvert = NULL).

Consolidated custom data layer initialisation

Code shared between BKE_mesh_new_nomain() and
BKE_mesh_new_nomain_from_template() is now in separate functions, instead
of copy-pasted.

Set mesh->totface in nomain-mesh creation

The totxxx fields should match the number of elements in their respective
custom data layers.

Fix T55344: linked collection instance has user count 0.

UI: tweak for Cycles panels.

Cleanup: fix compiler warning.

Fix importing temporary screens

Apparently Blender 2.79 could save temporary screens; those should not be
converted to workspaces.

Fix errors after merge (main->bmain)