fix decimal, integer alias overtype behavior wit autogroup disabled

js/jquery.inputmask.numeric.extensions.js

@@ -3,7 +3,7 @@ Input Mask plugin extensions
 http://github.com/RobinHerbots/jquery.inputmask
 Copyright (c) 2010 - 2012 Robin Herbots
 Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php)
-Version: 1.3.2
+Version: 1.3.3
 
 Optional extensions on the jquery.inputmask base
 */
@@ -77,15 +77,17 @@ Optional extensions on the jquery.inputmask base
                                 }
                             }
                         }
-                        //grouping
-                        if (opts.autoGroup && isValid != false && !strict) {
+                        
+                        if (isValid != false && !strict) {
                             var cbuf = buffer.slice();
                             cbuf.splice(pos, 0, "?"); //set position indicator
                             var bufVal = cbuf.join('');
-                            bufVal = bufVal.replace(new RegExp("\\" + opts.groupSeparator, "g"), '');
-                            var reg = new RegExp('(-?[\\d?]+)([\\d?]{' + opts.groupSize + '})');
-                            while (reg.test(bufVal)) {
-                                bufVal = bufVal.replace(reg, '$1' + opts.groupSeparator + '$2');
+                            if (opts.autoGroup || bufVal.indexOf(opts.groupSeparator) != -1) {
+                                bufVal = bufVal.replace(new RegExp("\\" + opts.groupSeparator, "g"), '');
+                                var reg = new RegExp('(-?[\\d?]+)([\\d?]{' + opts.groupSize + '})');
+                                while (reg.test(bufVal)) {
+                                    bufVal = bufVal.replace(reg, '$1' + opts.groupSeparator + '$2');
+                                }
                             }
                             buffer.length = bufVal.length; //align the length
                             for (var i = 0, l = bufVal.length; i < l; i++) {