They accidentally applied to a MenuOptionWidget in autocompletion dropdowns, too.
Change-Id: I54d0988e78b65e0fb922ef353626453cce56e474
/* Flatlist styling for PHP widgets... */
.mw-htmlform-flatlist .oo-ui-fieldLayout-align-inline,
/* ...and for JS widgets */
-.mw-htmlform-flatlist .oo-ui-optionWidget,
-.mw-htmlform-flatlist .oo-ui-multioptionWidget {
+.mw-htmlform-flatlist .oo-ui-radioOptionWidget,
+.mw-htmlform-flatlist .oo-ui-checkboxMultioptionWidget {
display: inline-block;
margin-right: 1em;
}