$ git clone -n https://src.fedoraproject.org/rpms/rust-async-recursion.git /var/lib/mock/f45-build-40272-770/root/chroot_tmpdir/scmroot/rust-async-recursion
Cloning into '/var/lib/mock/f45-build-40272-770/root/chroot_tmpdir/scmroot/rust-async-recursion'...
$ git fetch origin e0fcc9707a37b59a4936d77913f2777c37d2a723:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-async-recursion
 * [new ref]         e0fcc9707a37b59a4936d77913f2777c37d2a723 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0fcc97 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild