$ git clone -n https://src.fedoraproject.org/rpms/ustr.git /var/lib/mock/f40-build-2331882-59119/root/chroot_tmpdir/scmroot/ustr
Cloning into '/var/lib/mock/f40-build-2331882-59119/root/chroot_tmpdir/scmroot/ustr'...
$ git fetch origin 395ada809d5c168839c73667b5763631a03515d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ustr
 * [new ref]         395ada809d5c168839c73667b5763631a03515d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 395ada8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild