$ git clone -n https://src.fedoraproject.org/rpms/rust-rpki.git /var/lib/mock/f42-build-3264636-41245/root/chroot_tmpdir/scmroot/rust-rpki
Cloning into '/var/lib/mock/f42-build-3264636-41245/root/chroot_tmpdir/scmroot/rust-rpki'...
$ git fetch origin 0ffaf74d3c42a6320231b0695cf8e27299ee3c07:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rpki
 * [new ref]         0ffaf74d3c42a6320231b0695cf8e27299ee3c07 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ffaf74 Restore license list; use shrink for easier future diffing