don't process too early, just don't set the function prop to true if we have a process function

Author: hannojg

packages/react-native-renderer/src/ReactNativeAttributePayloadFabric.js

@@ -295,14 +295,8 @@ function diffProperties(
     nextProp = nextProps[propKey];
 
     if (typeof nextProp === 'function') {
-      if (typeof attributeConfig === 'object') {
-        // When the config for a function prop has a custom process method
-        // we don't assume its a regular event handler, but use the process method:
-        nextProp = attributeConfig.process(nextProp);
-        if (typeof prevProp === 'function') {
-          prevProp = attributeConfig.process(prevProp);
-        }
-      } else {
+      const attributeConfigHasProcess = typeof attributeConfig === 'object' && typeof attributeConfig.process === 'function';
+      if (!attributeConfigHasProcess) {
         // functions are converted to booleans as markers that the associated
         // events should be sent from native.
         nextProp = (true: any);