Fix T91680: viewport selection broken in macOS x86 build with Xcode 13

There is an apparent compiler bug here, tweak the code to avoid it. This did
not affect official builds as we were still using Xcode 12.

Fix potential crash opening 3.0 blend files in older versions.

Affects insertion of constraints in liboverrides. In some cases, when
opening newer post-3.0 .blend files, the source won't be found anymore,
override apply code then needs to fail properly instead of crashing.

Related to refactor from rB33c5e7bcd5e5.

VSE: Implement sanity check for files with more channels than supported

This is a follow up to 8fecc2a8525467ee2fbbaae16ddbbc10b3050d46.

This makes sure future .blend files that have more channels than the
limit won't break Blender.

For LTS this happens silently, without warning the users.

This is part of https://developer.blender.org/D12645

Differential Revision: https://developer.blender.org/D12648

Add missing "CUDA_ERROR_UNSUPPORTED_PTX_VERSION" to CUEW

This is required for Cycles to report a meaningful error message when it fails to load a PTX module
created with a newer CUDA toolkit version than the driver supports.

Ref T91879

Fix LLVM 12 symbol conflict with Mesa drivers, after recent Linux libs update

Blender 2.83.19-rc

Blender 2.83.18-release

Fix T91557: Texture Paint Stencil doesnt use assigned UV Layer

Choosing a UV layer would actually affect the overlay in the viewport
and also painting with the mask brush was in that UV space, but the
resulting stencil mask was always applied with the active UV (not the
explicitly selected stencil UV -- the one one is looking at in the
viewport!) to painting.

This has been like that as far as I have checked back (at least 2.79b),
I am surprised this has not come up before, but it does not seem to make
sense at all...

Now use the UV specified for the stencil layer when applying the mask for
painting, so it corresponds to the stencil mask one is looking at in the
viewport.

Maniphest Tasks: T91557

Differential Revision: https://developer.blender.org/D12583

Fix default surface resolution U/V mis-match

The resolution for surfaces was 12 for U, 4 for V,
where both should have been set to 4.

Regression in 9a076dd95a01135ea50f9ccc675668db9f2155f4

Fix memory leak if an error occurred assigning id-property sequence

Fix error scaling thumbnails to zero dimensions

Follow up to fix for T89868.

Fix invalid mask use for the UV-project modifier

Mistake in a30a8179331d689c9e599fb9a530c0b6b155f689.

Fix T90651: camera reconstruction crash without scene camera

This was working differently in 2.79, tried tracking this down and it
seems this was wrong since the 2.8 beginning in {rB7907dfc40018}.

This would not only crash without an active scene camera, but would also
result in different tracks from different camera's constraints could not
be selected.

So select id depends on corresponding camera, remove the dependency on
scene camera completely.

Maniphest Tasks: T90651

Differential Revision: https://developer.blender.org/D12230

Fix buffer size mismatch in SCRIPT_OT_python_file_run

Reading paths over 512 bytes would cause a buffer overrun.

Pipeline: Use explicit cuda version numbers.

Fix T90791: Knife project leaks memory with curve/text cutter

Cleanup: rename BKE_mesh_free -> BKE_mesh_free_data

It wasn't obvious this didn't free the memory of the mesh it's self
leading to memory leaks.

Fix memory leak in edit-mesh dissolve degenerate

Fix T90719: Boost sources dowload address needed to be updated.

BLI_math: Fix several division-by-zero cases.

Those were caused by various tools used on degenerate geometry, see
T79775.

Note that fixes are as low-level as possible, to ensure they cover as
much as possible of unreported issues too.

We still probably have many more of those hidden in BLI_math though.