Fix cancelling multiselect

.env

@@ -1,5 +1,5 @@
 API_ID=1025907
 API_HASH=452b0359b988148995f22ff0f4229750
 VERSION=1.0.1
-VERSION_FULL=1.0.1 (55)
-BUILD=55
+VERSION_FULL=1.0.1 (56)
+BUILD=56

src/components/chat/selection.ts

@@ -941,7 +941,7 @@ export default class ChatSelection extends AppSelection {
         left.style.transform = '';
         right.style.transform = '';
       }
-    } else {
+    } else if(this.selectionLeft) {
       this.selectionLeft.style.transform = `translateX(-${needTranslateX * 2}px)`;
       this.selectionRight.style.transform = `translateX(${needTranslateX * 2}px)`;
     }