git chokes when pushing very large commits

When a commit is very large (over 4 GiB it seems) it's possible that it becomes impossible to push. This can occur (and has occurred) in repositories where a lot (thousands) of files are below the annex threshold (10 MiB by default) but together are multiple GiB in size, creating a single very large commit.

It would be good if we could have a way to warn the user about this and ask them to make multiple smaller commits. It might be even better if gin-cli could do it for them (?).

No file, test, or entry point is named in the issue. Start by locating the push workflow in gin-cli and reproduce the failure with a commit exceeding 4 GiB. Done should include a warning that recommends smaller commits; automatic splitting is suggested but not defined.

Written by the indexing model from the issue text.