Fix #12827. Remove exclusive event semantics from .trigger().

No unit tests were removed in the undoing of this feature. 😭

src/event.js

@@ -202,7 +202,7 @@ jQuery.event = {
 		}
 
 		// Event object or event type
-		var cache, exclusive, i, cur, old, ontype, special, handle, eventPath, bubbleType,
+		var cache, i, cur, old, ontype, special, handle, eventPath, bubbleType,
 			type = event.type || event,
 			namespaces = event.namespace ? event.namespace.split(".") : [];
 
@@ -211,12 +211,6 @@ jQuery.event = {
 			return;
 		}
 
-		if ( type.indexOf( "!" ) >= 0 ) {
-			// Exclusive events trigger only for the exact event (no namespaces)
-			type = type.slice(0, -1);
-			exclusive = true;
-		}
-
 		if ( type.indexOf( "." ) >= 0 ) {
 			// Namespaced trigger; create a regexp to match event type in handle()
 			namespaces = type.split(".");
@@ -240,7 +234,6 @@ jQuery.event = {
 
 		event.type = type;
 		event.isTrigger = true;
-		event.exclusive = exclusive;
 		event.namespace = namespaces.join( "." );
 		event.namespace_re = event.namespace? new RegExp("(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)") : null;
 		ontype = type.indexOf( ":" ) < 0 ? "on" + type : "";
@@ -357,7 +350,6 @@ jQuery.event = {
 			handlers = ( (jQuery._data( this, "events" ) || {} )[ event.type ] || []),
 			delegateCount = handlers.delegateCount,
 			args = core_slice.call( arguments ),
-			run_all = !event.exclusive && !event.namespace,
 			special = jQuery.event.special[ event.type ] || {},
 			handlerQueue = [];
 
@@ -413,9 +405,9 @@ jQuery.event = {
 			for ( j = 0; j < matched.matches.length && !event.isImmediatePropagationStopped(); j++ ) {
 				handleObj = matched.matches[ j ];
 
-				// Triggered event must either 1) be non-exclusive and have no namespace, or
+				// Triggered event must either 1) have no namespace, or
 				// 2) have namespace(s) a subset or equal to those in the bound event (both can have no namespace).
-				if ( run_all || (!event.namespace && !handleObj.namespace) || event.namespace_re && event.namespace_re.test( handleObj.namespace ) ) {
+				if ( !event.namespace || event.namespace_re && event.namespace_re.test( handleObj.namespace ) ) {
 
 					event.data = handleObj.data;
 					event.handleObj = handleObj;