$ git clone -n https://src.fedoraproject.org/rpms/perl-CSS-Squish.git /var/lib/mock/f45-build-22103-589/root/chroot_tmpdir/scmroot/perl-CSS-Squish
Cloning into '/var/lib/mock/f45-build-22103-589/root/chroot_tmpdir/scmroot/perl-CSS-Squish'...
$ git fetch origin a60ca7a701aedcbe5657e23378bdf7aca9106c84:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CSS-Squish
 * [new ref]         a60ca7a701aedcbe5657e23378bdf7aca9106c84 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a60ca7a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild