$ git clone -n https://src.fedoraproject.org/rpms/golang-gopkg-macaroon-1.git /var/lib/mock/f45-build-12726-443/root/chroot_tmpdir/scmroot/golang-gopkg-macaroon-1
Cloning into '/var/lib/mock/f45-build-12726-443/root/chroot_tmpdir/scmroot/golang-gopkg-macaroon-1'...
$ git fetch origin be973238c57570a03d9573c498d7254892865642:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-gopkg-macaroon-1
 * [new ref]         be973238c57570a03d9573c498d7254892865642 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be97323 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild