$ git clone -n https://src.fedoraproject.org/rpms/rust-triforce-lv2.git /var/lib/mock/f42-build-side-1-3505978-45995/root/chroot_tmpdir/scmroot/rust-triforce-lv2
Cloning into '/var/lib/mock/f42-build-side-1-3505978-45995/root/chroot_tmpdir/scmroot/rust-triforce-lv2'...
$ git fetch origin 7c2407a93d00bb5a085603a2a28cc3007da788dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-triforce-lv2
 * [new ref]         7c2407a93d00bb5a085603a2a28cc3007da788dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c2407a Update to 0.2.1; Fixes: RHBZ#2355918