$ git clone -n https://src.fedoraproject.org/rpms/python-flexmock.git /var/lib/mock/f39-build-1431657-31796/root/chroot_tmpdir/scmroot/python-flexmock
Cloning into '/var/lib/mock/f39-build-1431657-31796/root/chroot_tmpdir/scmroot/python-flexmock'...
$ git fetch origin 28fc2cb17bb597c8a60e94c4d1378115b9966804:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-flexmock
 * [new ref]         28fc2cb17bb597c8a60e94c4d1378115b9966804 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 28fc2cb Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild