Series import: validate app.site-parser[x].currency-value

[0pdd]

The puzzle 695-707db4aa from #695 has to be resolved:

mystamps/src/main/java/ru/mystamps/web/util/extractor/JsoupSiteParser.java

Line 108 in df45acd

// @todo #695 Series import: validate app.site-parser[x].currency-value

The puzzle was created by Slava Semushin on 04-Jan-18.

Estimate: 0 minutes, role: IMP.

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[php-coder]

After fixing #975 the properties will live in database and we won't have code that validates the properties (see also #751). I'm not sure that we need validation for them at this stage because such errors should not happen as only admin adds these properties to database. Even if they occurs, the chance is really small and in that case we may circle back to this discussion.