$ git clone -n https://src.fedoraproject.org/rpms/python-rosinstall_generator.git /var/lib/mock/f45-build-32838-664/root/chroot_tmpdir/scmroot/python-rosinstall_generator
Cloning into '/var/lib/mock/f45-build-32838-664/root/chroot_tmpdir/scmroot/python-rosinstall_generator'...
$ git fetch origin 7194b7439a8f714689619a553746836958f4925f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-rosinstall_generator
 * [new ref]         7194b7439a8f714689619a553746836958f4925f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7194b74 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild