$ git clone -n https://src.fedoraproject.org/rpms/python-testing.postgresql.git /var/lib/mock/f39-build-1554941-37079/root/chroot_tmpdir/scmroot/python-testing.postgresql
Cloning into '/var/lib/mock/f39-build-1554941-37079/root/chroot_tmpdir/scmroot/python-testing.postgresql'...
$ git fetch origin e26990890d6eecc5a919968457e8356269ea6612:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-testing.postgresql
 * [new ref]         e26990890d6eecc5a919968457e8356269ea6612 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e269908 Patch for Python 3.12 compatibility (fix RHBZ#2220533, fix RHBZ#2226352)