$ git clone -n https://src.fedoraproject.org/rpms/golang-github-task.git /var/lib/mock/f40-build-782164-132075/root/chroot_tmpdir/scmroot/golang-github-task
Cloning into '/var/lib/mock/f40-build-782164-132075/root/chroot_tmpdir/scmroot/golang-github-task'...
$ git fetch origin a4cb189da77316471df9fe01afb7b5ee6db03637:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-task
 * [new ref]         a4cb189da77316471df9fe01afb7b5ee6db03637 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4cb189 update to v3.34.1, close rhbz#2219039