$ git clone -n https://src.fedoraproject.org/rpms/rust-gimoji.git /var/lib/mock/f41-build-861572-169835/root/chroot_tmpdir/scmroot/rust-gimoji
Cloning into '/var/lib/mock/f41-build-861572-169835/root/chroot_tmpdir/scmroot/rust-gimoji'...
$ git fetch origin 9264f7a43f61220f17c86d69af1a532b785c21c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gimoji
 * [new ref]         9264f7a43f61220f17c86d69af1a532b785c21c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9264f7a Update to version 1.1.1; Fixes RHBZ#2315422