git merge request does not show all commits that are being merged

[Dimitri John Ledkov]

https://code.launchpad.net/~xnox/ubuntu/+source/linux/+git/bionic/+merge/412577

Is a merge proposal of 16 patches.

Most of them are cherrypicks that got rebased recently.

Only the last 10 commits are shown, but the first 6 are missing, yet visible in the diff.

I was expecting 16 commits to be visible under "Unmerged commits" or some continuation/paging.

[Jürgen Gmach (jugmac00)]

Thank you for the bug report. The limit of 10 is hardcoded in the source code.

https://git.launchpad.net/launchpad/tree/lib/lp/code/model/branchmergeproposal.py#n995

I will talk with the team about whether there is a reason for this limit or whether we could lift it.

At very least there should be a message that the list of commits is limited.

[Colin Watson (cjwatson)]

Regardless of whether we lift it, it still can't be unboundedly large (for instance, imagine an MP that tries to merge the full history of a non-trivial branch into an entirely unrelated branch - this actually happens moderately often by accident), so we should still work out how to make the truncation clearer in the web UI.