$ git clone -n https://src.fedoraproject.org/rpms/kf5-khtml.git /var/lib/mock/f40-build-760369-121083/root/chroot_tmpdir/scmroot/kf5-khtml
Cloning into '/var/lib/mock/f40-build-760369-121083/root/chroot_tmpdir/scmroot/kf5-khtml'...
$ git fetch origin 6d08e0e155788f1ce81ea84bb8ea0ee4fce7235a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-khtml
 * [new ref]         6d08e0e155788f1ce81ea84bb8ea0ee4fce7235a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d08e0e 5.113.0