$ git clone -n https://src.fedoraproject.org/rpms/perl-Module-Used.git /var/lib/mock/f45-build-24915-607/root/chroot_tmpdir/scmroot/perl-Module-Used
Cloning into '/var/lib/mock/f45-build-24915-607/root/chroot_tmpdir/scmroot/perl-Module-Used'...
$ git fetch origin 1b2df9c6fd11e1442e50682060e0d4b4a6a7d386:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Module-Used
 * [new ref]         1b2df9c6fd11e1442e50682060e0d4b4a6a7d386 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b2df9c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild