$ git clone -n https://src.fedoraproject.org/rpms/golang-mvdan-xurls.git /var/lib/mock/f45-build-20284-569/root/chroot_tmpdir/scmroot/golang-mvdan-xurls
Cloning into '/var/lib/mock/f45-build-20284-569/root/chroot_tmpdir/scmroot/golang-mvdan-xurls'...
$ git fetch origin f6129630ebb4e8fcb2dc2eeb7f18e56c17233b10:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-mvdan-xurls
 * [new ref]         f6129630ebb4e8fcb2dc2eeb7f18e56c17233b10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f612963 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild