DDMsgReader: When listing messages via lightbar, check if the subject is...

DDMsgReader: When listing messages via lightbar, check if the subject is UTF-8, which now helps the lightbar menu display the line properly, particularly for UTF-8 terminals

xtrn/DDMsgReader/DDMsgReader.js

@@ -4414,7 +4414,8 @@ function DigDistMsgReader_CreateLightbarMsgListMenu()
 			// When setting the item text, call PrintMessageInfo with true as
 			// the last parameter to return the string instead
 			menuItemObj.text = strip_ctrl(this.msgReader.PrintMessageInfo(msgHdr, false, itemIdx+1, true));
-			menuItemObj.textIsUTF8 = msgHdr.hasOwnProperty("is_utf8") && msgHdr.is_utf8;
+			var subjUTF8 = str_is_utf8(msgHdr.subject) && !str_is_ascii(msgHdr.subject);
+			menuItemObj.textIsUTF8 = (msgHdr.hasOwnProperty("is_utf8") && msgHdr.is_utf8) || subjUTF8;
 			menuItemObj.retval = msgHdr.number;
 			var msgIsToUser = userHandleAliasNameMatch(msgHdr.to);
 			var msgIsFromUser = userHandleAliasNameMatch(msgHdr.from);