fix: disable dot notation to avoid the renaming for the prop during b…

…uild/minification

packages/ui/components/form-core/src/validate/ValidateMixin.js

@@ -687,7 +687,9 @@ export const ValidateMixinImplementation = superclass =>
       }
 
       for (const validatorToSetup of this._allValidators) {
-        if (/** @type {typeof Validator}  */ validatorToSetup._$isValidator$ === undefined) {
+        // disable dot notation to avoid the renaming for the prop during build/minification
+        // eslint-disable-next-line dot-notation
+        if (/** @type {typeof Validator}  */ validatorToSetup['_$isValidator$'] === undefined) {
           // throws in constructor are not visible to end user so we do both
           const errorType = Array.isArray(validatorToSetup) ? 'array' : typeof validatorToSetup;
           const errorMessage = `Validators array only accepts class instances of Validator. Type "${errorType}" found. This may be caused by having multiple installations of "@lion/ui/form-core.js".`;