$ git clone -n https://src.fedoraproject.org/rpms/golang-github-shurcool-httpgzip.git /var/lib/mock/f45-build-12394-442/root/chroot_tmpdir/scmroot/golang-github-shurcool-httpgzip
Cloning into '/var/lib/mock/f45-build-12394-442/root/chroot_tmpdir/scmroot/golang-github-shurcool-httpgzip'...
$ git fetch origin 380e6b2db50a90dba53e10e21bf0f70d38250589:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-shurcool-httpgzip
 * [new ref]         380e6b2db50a90dba53e10e21bf0f70d38250589 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 380e6b2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild