[Kanti]

Problem

Moving a content element with drag and drop disconnects and reconnects the ve-editable-text elements inside it. connectedCallback parsed the validation attribute into a new object on every connect, so Lit treated validation as changed and updated() normalized and stored the value, although the editor typed nothing. Values that violate the TCA were trimmed or cut, and values shorter than a non-required min were emptied. In 1.10.4, moving a content element never changed field values.

Implemented behavior

• Lit parses the validation attribute (type: Object), and connectedCallback no longer assigns it.
• The constructor sets {} as the default for elements without the attribute.

Tests

• ve-editable-text.test.js (browser): moving the elements with insertBefore, like flipInsertBefore does, keeps untouched values and the parsed validation. This test fails without the fix.
• The existing parsing tests (upgraded elements, elements inserted after the definition, createElement) pass with Lit's parsing alone.
• npm run test: 90 passing, npm run lint

Follow-up

Moving an edited field also set valueInitial to the edited value, so the reset button did not restore the initial value afterwards. Fixed in #160.