What do the arrows mean in the IDEA git log screen?

Question

After a very tricky merge we now have to enter commit messages on merge and I noticed the down/up arrows in the git/log screen for IDEA.

I think it is "disconnected" but how do I reconnect it with the remote branch?

Answer 1

Turns out the arrow is just a collapse feature! I feel silly now, but I couldn't find anything on this.

It's just a side effect from merging a lot of remotes into a single repo.

Answer 2

It's just a navigate button to your last or next commit. Usually, it appear when too many commits on other branch, and your last commit are too far away from current.