$ git clone -n https://src.fedoraproject.org/rpms/rust-signal-hook-registry.git /var/lib/mock/f40-build-2716609-72658/root/chroot_tmpdir/scmroot/rust-signal-hook-registry
Cloning into '/var/lib/mock/f40-build-2716609-72658/root/chroot_tmpdir/scmroot/rust-signal-hook-registry'...
$ git fetch origin f995a52fb0011e21f035d5c6ed2dba8d235f4829:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-signal-hook-registry
 * [new ref]         f995a52fb0011e21f035d5c6ed2dba8d235f4829 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f995a52 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild