$ git clone -n https://src.fedoraproject.org/rpms/rust-nu-ansi-term.git /var/lib/mock/f40-build-2116057-50701/root/chroot_tmpdir/scmroot/rust-nu-ansi-term
Cloning into '/var/lib/mock/f40-build-2116057-50701/root/chroot_tmpdir/scmroot/rust-nu-ansi-term'...
$ git fetch origin fdad95cd4f84405adf88a20ace72f6475b2a6a94:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nu-ansi-term
 * [new ref]         fdad95cd4f84405adf88a20ace72f6475b2a6a94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fdad95c Update to 0.49.0