During object duplication the syncing is temporarily disabled. With {D15885} this isn't useful as when disabled
the view_layer is still accessed to locate bases. This can be improved by first locating the source bases,With {D15885} this isn't useful as when disabled then duplicate view_layer
and sync and locate the new basesis still accessed to locate bases. This can be improved by first
locating the source bases, then duplicate and sync and locate
the new bases.
This patch removes the resync forbid and improve the times
that resyncing actually must happen.