Null font on Windows causes access violation in harfbuzz >= 4.0.0
As a consequence, darktable started crashing once harfbuzz got updated to >= 4.0.0
See
https://github.com/harfbuzz/harfbuzz/issues/3519
https://github.com/darktable-org/darktable/issues/10882#issuecomment-1021542865
https://github.com/darktable-org/darktable/issues/11407
Seems to happen only on Windows, not sure if it similar to e.g. https://gitlab.freedesktop.org/cairo/cairo/-/issues/544
This is w/ Pango 1.50.6, although the critical warning in darktable started appearing months before with an earlier version as well.
Edited by Miloš Komarčević