upload: add --ignore-remote-commitsv2.72stable

When uploading a branch that merges another remote-tracking branch (such
as an upstream branch into the destination branch), ReviewableBranch
only excludes the destination tracking branch (^base). As a result, git
rev-list walks the merged parent and counts all merged commits even
though they already exist on a remote branch, triggering the unusual
commit count warning in _VerifyPendingCommits.

Add --ignore-remote-commits to `repo upload` to pass --not --remotes to
git rev-list in ReviewableBranch so commits already reachable from
refs/remotes/* are excluded from the pending commit list.

Test: ./run_tests tests/test_project.py tests/test_subcmds_upload.py
Change-Id: Ib1fb864982729e20a621144580fe95daa478eaee
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/651284
Tested-by: Romaric Jodin <rjodin@google.com>
Reviewed-by: Brian Gan <brgan@google.com>
Commit-Queue: Romaric Jodin <rjodin@google.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/man/repo-upload.1 b/man/repo-upload.1
index ad17b6987..3d7abb91e 100644
--- a/man/repo-upload.1
+++ b/man/repo-upload.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "August 2026" "repo upload" "Repo Manual"
+.TH REPO "1" "October 2026" "repo upload" "Repo Manual"
 .SH NAME
 repo \- repo upload - manual page for repo upload
 .SH SYNOPSIS
@@ -80,6 +80,9 @@ ignore untracked files in the working copy
 \fB\-\-no\-ignore\-untracked\-files\fR
 always ask about untracked files in the working copy
 .TP
+\fB\-\-ignore\-remote\-commits\fR
+ignore commits already in remote branches
+.TP
 \fB\-\-no\-cert\-checks\fR
 disable verifying ssl certs (unsafe)
 .SS Logging options: