$ git clone -n https://src.fedoraproject.org/rpms/rust-notify-rust.git /var/lib/mock/f42-build-side-1-3539521-46565/root/chroot_tmpdir/scmroot/rust-notify-rust
Cloning into '/var/lib/mock/f42-build-side-1-3539521-46565/root/chroot_tmpdir/scmroot/rust-notify-rust'...
$ git fetch origin a696d6ace7ba0dc4f9e7053245e9d91097fb6ee6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-notify-rust
 * [new ref]         a696d6ace7ba0dc4f9e7053245e9d91097fb6ee6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a696d6a Update to version 4.11.7; Fixes RHBZ#2355870