$ git clone -n https://src.fedoraproject.org/rpms/golang-github-tdewolff-test.git /var/lib/mock/f39-build-1841316-41989/root/chroot_tmpdir/scmroot/golang-github-tdewolff-test
Cloning into '/var/lib/mock/f39-build-1841316-41989/root/chroot_tmpdir/scmroot/golang-github-tdewolff-test'...
$ git fetch origin 4fd7afacdf46ee33573d87ac84db259e42bdd411:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-tdewolff-test
 * [new ref]         4fd7afacdf46ee33573d87ac84db259e42bdd411 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4fd7afa Update to latest version (#2246824)