[Bug correction] Reset basenode at each xpath rule

[GregThib]

When a xpath ruleset is made of several rules, and, for instance, the second rule return a void (because the underlying website as an optional HTML node for example), then the $basenode value will be filled with the node returned by the first rule of the set. So, to correct this and avoid repetitions into the result, the basenode=false have to be inside the rule's loop.

Bugfix/Enhancement

• [x] Have you added an explanation of what your changes do and why you'd like us to include them?
• [x] Have you successfully ran tests with your changes locally?

Example

Website: http://secouchermoinsbete.fr/ ATOM: https://secouchermoinsbete.fr/feeds.atom Rule:

    "secouchermoinsbete.fr": {
        "type": "xpath",
        "xpath": [
            "article[@class='anecdote']\/p[@class='summary']",
            "article[@class='anecdote']\/p[@class='details']",
            "div[@id='sources']"
        ],
        "join_element": "<br><br>"
    }

[dugite-code]

Good Catch, Thanks for your contribution