$ git clone -n https://src.fedoraproject.org/rpms/golang-github-jacobsa-oglematchers.git /var/lib/mock/f41-build-side-1-3123108-39473/root/chroot_tmpdir/scmroot/golang-github-jacobsa-oglematchers
Cloning into '/var/lib/mock/f41-build-side-1-3123108-39473/root/chroot_tmpdir/scmroot/golang-github-jacobsa-oglematchers'...
$ git fetch origin 272a2c52cc6df43af715841b7963112dad5d1e87:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-jacobsa-oglematchers
 * [new ref]         272a2c52cc6df43af715841b7963112dad5d1e87 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 272a2c5 convert ASL 2.0 license to SPDX