Add squash and rebase stats to telemetry
Problem to solve
Squash and merge and Rebase are used by many customers, and we know that in some situations they can fail. We don't have sufficient data to quantify the rate of failure currently.
Proposal
Track the number of merge requests for which squash and merge and rebase are used to merge the merge request, and the number of times either are shown as available, but fail.
Edited by James Ramsay (ex-GitLab)