Bug in compilator , with String.equals and utf8 symbol

Yes. ) now to equal that symbols i just added other not utf8 symbol. 
I long time didn't understand, why simple function give my wrong results) 

*offtop 
In suggestion  add  a callback function to the sdk WatchUi.WatchFace 
Determinate when something drawing on the screen message like: ("Connection lost/established", "Low phone battery", "chime o'clock")
run before the last onUpdate() calling
Function very needed for energy efficient wachface. Now i wrote "crutches" instead  of her  (by counting the number of step-by-step onUpdate calls)

Okay, I think I finally understand. Your original post said that symbol the same, but that is not the case. The utf8 code points are indeed different. Here is a test case that illustrates the problem much more clearly and avoids the possibility of the utf8 characters getting munged by the forum software.

//var a = "";
var a = "\uEACA";
		
//var b = "";
var b = "\uEACB";
		
System.println(a.equals(b));
System.println(b.equals(a));

This incorrectly prints

true
true

If I append another character (say "Z") to the strings, then the difference is properly detected.

You equal  only 1 symbol 
try diferent:
1:  

2: 

code of symbols  and 

This bug  i was get when redraw new icon from font, and check new with old text  

I can't reproduce. Here is the source for my test app.

using Toybox.Application;
using Toybox.WatchUi;
using Toybox.System;

function as_hex_bytes(s) {
	var r = [];
	
	var a = s.toUtf8Array();
	for (var i = 0; i < a.size(); ++i) {
		r.add("\\x" + a[i].format("%X"));
	}
	
	return r;
}

function as_code_points(s) {
	var r = [];
	
	var a = s.toCharArray();
	for (var i = 0; i < a.size(); ++i) {
		r.add(a[i].toNumber());
	}
	
	return r;
}

function as_unicode_escapes(s) {
	var r = [];
	
	var a = s.toCharArray();
	for (var i = 0; i < a.size(); ++i) {
		r.add("\\u" + a[i].toNumber().format("%X"));
	}
	
	return r;
}

class ForumTestApp extends Application.AppBase {

    function initialize() {
        AppBase.initialize();
        
		var s = "";
		// var s = "\uEACA";
		System.println(s);
		
		System.println(as_hex_bytes(s));
		System.println(as_code_points(s));
		System.println(as_unicode_escapes(s));
	
		System.println(s.equals(s));
		System.println(s.equals(""));
		System.println("".equals(s));
		System.println(s.equals("\uEACA"));
		System.println("\uEACA".equals(s));
    }

    function getInitialView() {
        return [ new WatchUi.View() ];
    }

}

The output in the eclipse console is:

î«Š
[\xEE, \xAB, \x8A]
[60106]
[\uEACA]
true
true
true
true
true

Sorry i give you wrong start data 
Its old bug, foget how it work

//code 60106  ,  code60107  - 0ff

allways show true, but symbol not equal , tested now on 3.2.5 

var dTExt = "";
Toybox.System.println( ((dTExt.equals("") )) );

if i add "1" to both text - function show false 

//60106  - on 60107  - 0ff
var dTExt = "1";
Toybox.System.println( ((dTExt.equals("1") )) );

thats how i fix this isue