declaration-block-no-shorthand-property-overrides
Disallow shorthand properties that override related longhand properties.
a { background-repeat: repeat; background: green; }
/** ↑
* This overrides the longhand property before it */
In almost every case, this is just an authorial oversight. For more about this behavior, see MDN's documentation of shorthand properties.
The message
secondary option can accept the arguments of this rule.