$ git clone -n https://src.fedoraproject.org/rpms/rust-event-listener.git /var/lib/mock/f40-build-2169672-51005/root/chroot_tmpdir/scmroot/rust-event-listener
Cloning into '/var/lib/mock/f40-build-2169672-51005/root/chroot_tmpdir/scmroot/rust-event-listener'...
$ git fetch origin 9f1796cf41823452717b82038995455f126b8ab2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-event-listener
 * [new ref]         9f1796cf41823452717b82038995455f126b8ab2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f1796c Update to version 3.0.0; Fixes RHBZ#2238237