$ git clone -n https://src.fedoraproject.org/rpms/rust-notify.git /var/lib/mock/f42-build-side-1-3587760-46935/root/chroot_tmpdir/scmroot/rust-notify
Cloning into '/var/lib/mock/f42-build-side-1-3587760-46935/root/chroot_tmpdir/scmroot/rust-notify'...
$ git fetch origin fce1886dc80fab413aa6d43bc40705b0a9c8f506:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-notify
 * [new ref]         fce1886dc80fab413aa6d43bc40705b0a9c8f506 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fce1886 Update to version 8.1.0; Fixes RHBZ#2376132