$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-Extract-Use.git /var/lib/mock/f45-build-24759-606/root/chroot_tmpdir/scmroot/perl-Module-Extract-Use
Cloning into '/var/lib/mock/f45-build-24759-606/root/chroot_tmpdir/scmroot/perl-Module-Extract-Use'...
$ git fetch origin 7812c6a75e30a26f8f4096f9d3e9ea557550382b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-Extract-Use
 * [new ref]         7812c6a75e30a26f8f4096f9d3e9ea557550382b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7812c6a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild