$ git clone -n https://src.fedoraproject.org/rpms/gdb-exploitable.git /var/lib/mock/f40-build-2652683-66895/root/chroot_tmpdir/scmroot/gdb-exploitable
Cloning into '/var/lib/mock/f40-build-2652683-66895/root/chroot_tmpdir/scmroot/gdb-exploitable'...
$ git fetch origin 581b5d79ad93082fdbce3c10db8325eefa11143c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gdb-exploitable
 * [new ref]         581b5d79ad93082fdbce3c10db8325eefa11143c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 581b5d7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild