$ git clone -n https://src.fedoraproject.org/rpms/kf5-kdewebkit.git /var/lib/mock/f40-build-786955-134636/root/chroot_tmpdir/scmroot/kf5-kdewebkit
Cloning into '/var/lib/mock/f40-build-786955-134636/root/chroot_tmpdir/scmroot/kf5-kdewebkit'...
$ git fetch origin dd0a7d25edb50c170a4c1116862b6d1d10351ff7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kdewebkit
 * [new ref]         dd0a7d25edb50c170a4c1116862b6d1d10351ff7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd0a7d2 fix: add patch to remove dependency on kf6 ecm