$ git clone -n https://src.fedoraproject.org/rpms/rust-byte-unit.git /var/lib/mock/f40-build-2035194-47942/root/chroot_tmpdir/scmroot/rust-byte-unit
Cloning into '/var/lib/mock/f40-build-2035194-47942/root/chroot_tmpdir/scmroot/rust-byte-unit'...
$ git fetch origin 6cac3651deabfa89a55491abe0495de077ecf5b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-byte-unit
 * [new ref]         6cac3651deabfa89a55491abe0495de077ecf5b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6cac365 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild