History revision inputs are missing labels

AFFECTS:

• /Main/?viewer=history

ERROR:

• Validation errors in /xwiki/bin/view/Main/?viewer=history
• ERROR: An input field has been found with no label association.
• ERROR: An input field has been found with no label association.
• ERROR: An input field has been found with no label association.
• ERROR: An input field has been found with no label association.

INVALIDATES:

• Dutch Guidelines: validateRpd13s1()
  • https://github.com/xwiki/xwiki-platform/blob/master/xwiki-platform-tools/xwiki-platform-tool-standards-validator/src/main/java/org/xwiki/validator/DutchWebGuidelinesValidator.java#L1190
• R-pd.13.1 "Use the label element to explicitly associate text with an input field in a form."

EXPLANATION:

• Missing labels for:

  <input type="radio" name="rev1" value="... />
  <input type="radio" name="rev2" value="... />
  <input type="radio" name="rev1" value="1.2" />
  <input type="radio" name="rev2" value="1.2"  checked="checked" />
  

FIXES:

• Add hidden labels for the inputs