$ git clone -n https://src.fedoraproject.org/rpms/rust-gh-emoji.git /var/lib/mock/f38-build-side-42-init-devel-1393704-31050/root/chroot_tmpdir/scmroot/rust-gh-emoji
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1393704-31050/root/chroot_tmpdir/scmroot/rust-gh-emoji'...
$ git fetch origin d83443fd8443ab0e2d39cb786ccee6ccb14cbf9c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gh-emoji
 * [new ref]         d83443fd8443ab0e2d39cb786ccee6ccb14cbf9c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d83443f Update to version 1.0.8; Fixes RHBZ#2239650