$ git clone -n https://src.fedoraproject.org/rpms/perl-Text-WagnerFischer.git /var/lib/mock/f45-build-27223-621/root/chroot_tmpdir/scmroot/perl-Text-WagnerFischer
Cloning into '/var/lib/mock/f45-build-27223-621/root/chroot_tmpdir/scmroot/perl-Text-WagnerFischer'...
$ git fetch origin 07d5dee327ff76167801833289249decd6fda9e6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Text-WagnerFischer
 * [new ref]         07d5dee327ff76167801833289249decd6fda9e6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 07d5dee Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild