Fixed incorrect highlighting of options that were activated, removed and then re-added in "multiple" mode

Fixes issues #1212 and #1216.

Author: sustmi

CHANGELOG.md

@@ -1,6 +1,11 @@
 <!-- Feel free to put either your handle and/or full name, according to
      your privacy needs -->
 
+*  Fixed incorrect highlighting of options that were activated, removed
+   and then re-added in "multiple" mode (#1212 and #1216)
+
+   *@sustmi*
+
 ## v0.12.4, v0.12.5 · 27 June 2018
 
 *  Allow the dropdown to reopen on click if it is closed without losing focus

src/selectize.js

@@ -1551,6 +1551,7 @@ $.extend(Selectize.prototype, {
 			if ($item.hasClass('active')) {
 				idx = self.$activeItems.indexOf($item[0]);
 				self.$activeItems.splice(idx, 1);
+				$item.removeClass('active');
 			}
 
 			self.items.splice(i, 1);

test/interaction.js

@@ -406,6 +406,30 @@
 			});
 		});
 
+		describe('deleting active item', function() {
+			it('should deactivate the item', function(done) {
+				var test = setup_test('<select multiple="multiple">' +
+					'<option value="a">A</option>' +
+					'<option value="b">B</option>' +
+					'</select>', {});
+
+				click(test.selectize.$control, function() {
+					click($('[data-value="a"]', test.selectize.$dropdown), function() {
+						click($('[data-value="a"]', test.selectize.$control), function() {
+							syn
+								.type('[backspace]', test.selectize.$control_input)
+								.delay(5, function() {
+									click($('[data-value="a"]', test.selectize.$dropdown), function () {
+										expect($('[data-value="a"]', test.selectize.$control).hasClass('active')).to.be.equal(false);
+										done();
+									});
+								});
+						});
+					});
+				});
+			});
+		});
+
 	});
 
 })();