$ git clone -n https://src.fedoraproject.org/rpms/opam.git /var/lib/mock/f40-build-768473-125342/root/chroot_tmpdir/scmroot/opam
Cloning into '/var/lib/mock/f40-build-768473-125342/root/chroot_tmpdir/scmroot/opam'...
$ git reset --hard ec421547e846555d3d54ac083cd6d9a701faa5d9
HEAD is now at ec42154 OCaml 5.1.1 + s390x code gen fix for Fedora 40