$ git clone -n https://src.fedoraproject.org/rpms/kf5-kdewebkit.git /var/lib/mock/f39-build-2187259-51381/root/chroot_tmpdir/scmroot/kf5-kdewebkit
Cloning into '/var/lib/mock/f39-build-2187259-51381/root/chroot_tmpdir/scmroot/kf5-kdewebkit'...
$ git fetch origin 51aec74a5b2fd0eaefb826f2f124e26a6632bd40:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kdewebkit
 * [new ref]         51aec74a5b2fd0eaefb826f2f124e26a6632bd40 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51aec74 5.113.0