$ git clone -n https://src.fedoraproject.org/rpms/golang-github-gobuffalo-packr.git /var/lib/mock/f38-build-side-42-init-devel-675211-26685/root/chroot_tmpdir/scmroot/golang-github-gobuffalo-packr
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-675211-26685/root/chroot_tmpdir/scmroot/golang-github-gobuffalo-packr'...
$ git fetch origin 41a30ab553055e2d8a09ea46657ada468615df53:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-gobuffalo-packr
 * [new ref]         41a30ab553055e2d8a09ea46657ada468615df53 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 41a30ab Add patch to fix test failures