$ git clone -n https://src.fedoraproject.org/rpms/dolfin.git /var/lib/mock/f39-build-2129055-50783/root/chroot_tmpdir/scmroot/dolfin
Cloning into '/var/lib/mock/f39-build-2129055-50783/root/chroot_tmpdir/scmroot/dolfin'...
$ git fetch origin e2909953675ef15203d39997c002d7908769ebf7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dolfin
 * [new ref]         e2909953675ef15203d39997c002d7908769ebf7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e290995 Rebuild for petsc-3.19.4