$ git clone -n https://src.fedoraproject.org/rpms/gnujump.git /var/lib/mock/f40-build-796932-140983/root/chroot_tmpdir/scmroot/gnujump
Cloning into '/var/lib/mock/f40-build-796932-140983/root/chroot_tmpdir/scmroot/gnujump'...
$ git fetch origin 265a49d98c46e7f1cb3309b29edeae82ca056b56:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnujump
 * [new ref]         265a49d98c46e7f1cb3309b29edeae82ca056b56 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 265a49d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild