$ git clone -n https://src.fedoraproject.org/rpms/libobjc2.git /var/lib/mock/f40-build-800791-143629/root/chroot_tmpdir/scmroot/libobjc2
Cloning into '/var/lib/mock/f40-build-800791-143629/root/chroot_tmpdir/scmroot/libobjc2'...
$ git fetch origin 92e1facbf389565449730f7777294f3f123583dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libobjc2
 * [new ref]         92e1facbf389565449730f7777294f3f123583dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 92e1fac Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild