Dylan Griffith authored Aug 23, 2023 and Bob Van Landuyt committed Aug 23, 2023

This can be replaced by calling `stick`. The only difference with this
refactoring is that `stick` also calls `Session#use_primary!`. This is
basically a no-op, however, as the only place using this code path is
already doing `MergeRequest#update` right before calling this method
will will already end up setting `use_primary` because any writes
autoamtically stick to the primary afterwards.