$ git clone -n https://src.fedoraproject.org/rpms/rust-ansi-str.git /var/lib/mock/f40-build-2660546-66918/root/chroot_tmpdir/scmroot/rust-ansi-str
Cloning into '/var/lib/mock/f40-build-2660546-66918/root/chroot_tmpdir/scmroot/rust-ansi-str'...
$ git fetch origin 21c5c2a1318acd7c903d21664b81a92a03a2c39d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ansi-str
 * [new ref]         21c5c2a1318acd7c903d21664b81a92a03a2c39d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21c5c2a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild