$ git clone -n https://src.fedoraproject.org/rpms/python-pybtex.git /var/lib/mock/f45-build-32147-657/root/chroot_tmpdir/scmroot/python-pybtex
Cloning into '/var/lib/mock/f45-build-32147-657/root/chroot_tmpdir/scmroot/python-pybtex'...
$ git fetch origin 14ad48401d33d655aea9fd93071d6bc2b999979d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pybtex
 * [new ref]         14ad48401d33d655aea9fd93071d6bc2b999979d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14ad484 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild