$ git clone -n https://src.fedoraproject.org/rpms/rubygem-sd_notify.git /var/lib/mock/f40-build-2323450-58714/root/chroot_tmpdir/scmroot/rubygem-sd_notify
Cloning into '/var/lib/mock/f40-build-2323450-58714/root/chroot_tmpdir/scmroot/rubygem-sd_notify'...
$ git fetch origin f8e793a4e65313388c79ec86c0d620db4086709d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-sd_notify
 * [new ref]         f8e793a4e65313388c79ec86c0d620db4086709d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8e793a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild