$ git clone -n https://src.fedoraproject.org/rpms/rust-unic-common.git /var/lib/mock/f40-build-2093958-50342/root/chroot_tmpdir/scmroot/rust-unic-common
Cloning into '/var/lib/mock/f40-build-2093958-50342/root/chroot_tmpdir/scmroot/rust-unic-common'...
$ git fetch origin cf5309117aeb7cf68a2f9f58d8797b146b7b0b0d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unic-common
 * [new ref]         cf5309117aeb7cf68a2f9f58d8797b146b7b0b0d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf53091 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild