$ git clone -n https://src.fedoraproject.org/rpms/golang-github-revel-log15.git /var/lib/mock/f45-build-12404-442/root/chroot_tmpdir/scmroot/golang-github-revel-log15
Cloning into '/var/lib/mock/f45-build-12404-442/root/chroot_tmpdir/scmroot/golang-github-revel-log15'...
$ git fetch origin e478174cd7073c1073dc89e6909bc105fa06ddbf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-revel-log15
 * [new ref]         e478174cd7073c1073dc89e6909bc105fa06ddbf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e478174 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild