$ git clone -n https://src.fedoraproject.org/rpms/bovo.git /var/lib/mock/f42-build-side-1-3562225-46722/root/chroot_tmpdir/scmroot/bovo
Cloning into '/var/lib/mock/f42-build-side-1-3562225-46722/root/chroot_tmpdir/scmroot/bovo'...
$ git fetch origin 07fc944ab9dca881d81297026fa94a97f1ca4416:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bovo
 * [new ref]         07fc944ab9dca881d81297026fa94a97f1ca4416 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 07fc944 25.04.2