$ git clone -n https://src.fedoraproject.org/rpms/devhelp.git /var/lib/mock/f40-build-2261188-54429/root/chroot_tmpdir/scmroot/devhelp
Cloning into '/var/lib/mock/f40-build-2261188-54429/root/chroot_tmpdir/scmroot/devhelp'...
$ git fetch origin d84e78d102f2ec3112bca6ec48f2e3f58ea23643:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/devhelp
 * [new ref]         d84e78d102f2ec3112bca6ec48f2e3f58ea23643 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d84e78d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild