$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mikioh-ipaddr.git /var/lib/mock/f45-build-12229-440/root/chroot_tmpdir/scmroot/golang-github-mikioh-ipaddr
Cloning into '/var/lib/mock/f45-build-12229-440/root/chroot_tmpdir/scmroot/golang-github-mikioh-ipaddr'...
$ git fetch origin fab5495b66f01a7a3e17d97482bfaed3fdded7a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mikioh-ipaddr
 * [new ref]         fab5495b66f01a7a3e17d97482bfaed3fdded7a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fab5495 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild