The adds/removes the namespace tag when the namespace option is clicked browser test seems to fail randomly, but recently a lot.
It should either be fixed or deactivated.
[chrome #0-8] 1 failing [chrome #0-8] [chrome #0-8] 1) AdvancedSearch adds/removes the namespace tag when the namespace option is clicked: [chrome #0-8] unknown error: Element <div class="mw-advancedSearch-namespace-2 mw-advancedSearch-namespace-border oo-ui-widget oo-ui-widget-enabled oo-ui-labelElement oo-ui-optionWidget oo-ui-decoratedOptionWidget oo-ui-menuOptionWidget mw-advancedSearch-ui-itemMenuOptionWidget" aria-disabled="false" tabindex="-1" role="option" aria-selected="false">...</div> is not clickable at point (543, 412). Other element would receive the click: <div class="mw-advancedSearch-ui-itemMenuOptionWidget-label-title">...</div> [chrome #0-8] Error: An unknown server-side error occurred while processing the command. [chrome #0-8] at Object.clickOnNamespace (extensions/AdvancedSearch/tests/selenium/pageobjects/search.page.js:119:14) [chrome #0-8] at Context.<anonymous> (extensions/AdvancedSearch/tests/selenium/specs/searchPage.js:154:25) [chrome #0-8] at Promise.F (node_modules/core-js/library/modules/_export.js:36:28) [chrome #0-8] at elementIdClick("0.058734076923098844-3") - click.js:20:22