$ git clone -n https://src.fedoraproject.org/rpms/rust-async-recursion.git /var/lib/mock/f40-build-2080986-49736/root/chroot_tmpdir/scmroot/rust-async-recursion
Cloning into '/var/lib/mock/f40-build-2080986-49736/root/chroot_tmpdir/scmroot/rust-async-recursion'...
$ git fetch origin d658d4e3ea99be60e41ead98f288f9cfb750c62b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-async-recursion
 * [new ref]         d658d4e3ea99be60e41ead98f288f9cfb750c62b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d658d4e Update to version 1.0.5; Fixes RHBZ#2236918