$ git clone -n https://src.fedoraproject.org/rpms/rust-async-trait.git /var/lib/mock/f40-build-2071694-49322/root/chroot_tmpdir/scmroot/rust-async-trait
Cloning into '/var/lib/mock/f40-build-2071694-49322/root/chroot_tmpdir/scmroot/rust-async-trait'...
$ git fetch origin bf14c83ce4f715e3d94aa3a52aec74deaca8b19f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-async-trait
 * [new ref]         bf14c83ce4f715e3d94aa3a52aec74deaca8b19f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf14c83 Update to version 0.1.74; Fixes RHBZ#2244255