$ git clone -n https://src.fedoraproject.org/rpms/rust-wl-clipboard-rs.git /var/lib/mock/f42-build-side-1-3523534-46210/root/chroot_tmpdir/scmroot/rust-wl-clipboard-rs
Cloning into '/var/lib/mock/f42-build-side-1-3523534-46210/root/chroot_tmpdir/scmroot/rust-wl-clipboard-rs'...
$ git fetch origin 51fc0517ce26e2c5aca577c8512d094012445602:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-wl-clipboard-rs
 * [new ref]         51fc0517ce26e2c5aca577c8512d094012445602 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51fc051 Bump proptest-derive to 0.5