$ git clone -n https://src.fedoraproject.org/rpms/coccinelle.git /var/lib/mock/f42-build-865718-173451/root/chroot_tmpdir/scmroot/coccinelle
Cloning into '/var/lib/mock/f42-build-865718-173451/root/chroot_tmpdir/scmroot/coccinelle'...
$ git fetch origin 0b2f109fce0101f3201d158d66fa5a43604309d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coccinelle
 * [new ref]         0b2f109fce0101f3201d158d66fa5a43604309d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b2f109 OCaml 5.3.0 rebuild for Fedora 42