$ git clone -n https://src.fedoraproject.org/rpms/perl-Feed-Find.git /var/lib/mock/f45-build-23454-597/root/chroot_tmpdir/scmroot/perl-Feed-Find
Cloning into '/var/lib/mock/f45-build-23454-597/root/chroot_tmpdir/scmroot/perl-Feed-Find'...
$ git fetch origin 38d7e887c421f5a9583220287dc1431467e72f58:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Feed-Find
 * [new ref]         38d7e887c421f5a9583220287dc1431467e72f58 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38d7e88 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild