$ git clone -n https://src.fedoraproject.org/rpms/rust-wild.git /var/lib/mock/f40-build-2040763-48382/root/chroot_tmpdir/scmroot/rust-wild
Cloning into '/var/lib/mock/f40-build-2040763-48382/root/chroot_tmpdir/scmroot/rust-wild'...
$ git fetch origin 282db0056527954c2762319ff73e63eae07a412a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-wild
 * [new ref]         282db0056527954c2762319ff73e63eae07a412a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 282db00 Update to version 2.2.0; Fixes RHBZ#2240472