$ git clone -n https://src.fedoraproject.org/rpms/openexr2.git /var/lib/mock/f42-build-3421880-45166/root/chroot_tmpdir/scmroot/openexr2
Cloning into '/var/lib/mock/f42-build-3421880-45166/root/chroot_tmpdir/scmroot/openexr2'...
$ git fetch origin f8f9d6e388ad57e1a4874b5ea390ff969f2b06a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openexr2
 * [new ref]         f8f9d6e388ad57e1a4874b5ea390ff969f2b06a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8f9d6e Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild