Keeps behavior that was enabled by default between 0.9 and 0.11. Imagine that you have simple structure:
tests -- a ---- results -- b ---- resultsIf checkbox is checked and you specifed tests/* as a parameters, plugin will upload it to tests/a/results...tests/b/results. If this checkbox is disabled, plugin will upload it as a/results...b/results. Pay attention - this option will be removed in next releases. So, it's better to avoid using it.