$ git clone -n https://src.fedoraproject.org/rpms/golang-google-protobuf.git /var/lib/mock/f38-build-729814-101876/root/chroot_tmpdir/scmroot/golang-google-protobuf
Cloning into '/var/lib/mock/f38-build-729814-101876/root/chroot_tmpdir/scmroot/golang-google-protobuf'...
$ git fetch origin 007aa018e28df94fdbbc6fc09f34dc5955c39796:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-google-protobuf
 * [new ref]         007aa018e28df94fdbbc6fc09f34dc5955c39796 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 007aa01 Update to 1.28.1 - Close: rhbz#2066871