$ git clone -n https://src.fedoraproject.org/rpms/rust-unic-langid-macros.git /var/lib/mock/f40-build-2328234-58867/root/chroot_tmpdir/scmroot/rust-unic-langid-macros
Cloning into '/var/lib/mock/f40-build-2328234-58867/root/chroot_tmpdir/scmroot/rust-unic-langid-macros'...
$ git fetch origin 8ff14d0d68988375a1b8f826454f6304f14feebe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unic-langid-macros
 * [new ref]         8ff14d0d68988375a1b8f826454f6304f14feebe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ff14d0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild