fix(android): explicitly define Ti.Android.currentService to be null …

…when not a service

common/Resources/ti.internal/kernel/module.js

@@ -598,12 +598,20 @@ function bootstrap (global, kroll) {
 		// On iOS, we don't yet pass in the value, but we do set Ti.App.currentService property beforehand!
 		// Can we remove the preload stuff in KrollBridge.m to pass along the service instance into this like we do on Andorid?
 		module.isService = OS_ANDROID ? (activityOrService instanceof Titanium.Service) : Ti.App.currentService !== null;
-		if (OS_ANDROID && module.isService) {
-			Object.defineProperty(Ti.Android, 'currentService', {
-				value: activityOrService,
-				writable: false,
-				configurable: true
-			});
+		if (OS_ANDROID) {
+			if (module.isService) {
+				Object.defineProperty(Ti.Android, 'currentService', {
+					value: activityOrService,
+					writable: false,
+					configurable: true
+				});
+			} else {
+				Object.defineProperty(Ti.Android, 'currentService', {
+					value: null,
+					writable: false,
+					configurable: true
+				});
+			}
 		}
 
 		if (!Module.main) {
@@ -612,9 +620,9 @@ function bootstrap (global, kroll) {
 		filename = filename.replace('Resources/', '/'); // normalize back to absolute paths (which really are relative to Resources under the hood)
 		module.load(filename, source);
 
-		if (OS_ANDROID && module.isService) {
+		if (OS_ANDROID) {
 			Object.defineProperty(Ti.Android, 'currentService', {
-				value: undefined,
+				value: null,
 				writable: false,
 				configurable: true
 			});