$ git clone -n https://src.fedoraproject.org/rpms/kf6-knotifications.git /var/lib/mock/f42-build-side-1-3573582-46768/root/chroot_tmpdir/scmroot/kf6-knotifications
Cloning into '/var/lib/mock/f42-build-side-1-3573582-46768/root/chroot_tmpdir/scmroot/kf6-knotifications'...
$ git fetch origin 2cd9fab5391d072d5a54d4dc5f2f15ef56e70045:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-knotifications
 * [new ref]         2cd9fab5391d072d5a54d4dc5f2f15ef56e70045 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2cd9fab 6.15 and plasma 3.4 compatibility rebuild