$ git clone -n https://src.fedoraproject.org/rpms/rust-unic-locale.git /var/lib/mock/f38-build-side-42-init-devel-1396138-31050/root/chroot_tmpdir/scmroot/rust-unic-locale
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1396138-31050/root/chroot_tmpdir/scmroot/rust-unic-locale'...
$ git fetch origin f74ab819f7df4834db9b1daf34b22a427bc77722:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-unic-locale
 * [new ref]         f74ab819f7df4834db9b1daf34b22a427bc77722 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f74ab81 Update to version 0.9.1; Fixes RHBZ#2136329