Don't hijack scrollbar when status is unmounted, fixes #404

app/soapbox/components/status.js

@@ -151,14 +151,16 @@ class Status extends ImmutablePureComponent {
   }
 
   componentWillUnmount() {
-    if (this.node && this.props.getScrollPosition) {
-      const position = this.props.getScrollPosition();
-      if (position !== null && this.node.offsetTop < position.top) {
-        requestAnimationFrame(() => {
-          this.props.updateScrollBottom(position.height - position.top);
-        });
-      }
-    }
+    // FIXME: Run this code only when a status is being deleted.
+    //
+    // if (this.node && this.props.getScrollPosition) {
+    //   const position = this.props.getScrollPosition();
+    //   if (position !== null && this.node.offsetTop < position.top) {
+    //     requestAnimationFrame(() => {
+    //       this.props.updateScrollBottom(position.height - position.top);
+    //     });
+    //   }
+    // }
   }
 
   handleToggleMediaVisibility = () => {