Reset store after disconnect

app/src/components/Layout/PauseButton.tsx

@@ -84,8 +84,8 @@ class PauseButton extends React.Component<Props, {changes: number}> {
 
 const mapStateToProps = (state: AppState) => {
   return {
-    paused: state.tree.paused,
-    tree: state.tree.tree,
+    paused: state.tree.get('paused'),
+    tree: state.tree.get('tree'),
   }
 }
 

app/src/components/Sidebar/Sidebar.tsx

@@ -185,7 +185,7 @@ class Sidebar extends React.Component<Props, State> {
 
 const mapStateToProps = (state: AppState) => {
   return {
-    node: state.tree.selectedTopic,
+    node: state.tree.get('selectedTopic'),
   }
 }
 

app/src/components/Sidebar/ValueRenderer/ValuePanel.tsx

@@ -180,7 +180,7 @@ const mapDispatchToProps = (dispatch: any) => {
 const mapStateToProps = (state: AppState) => {
   return {
     valueRendererDisplayMode: state.settings.get('valueRendererDisplayMode'),
-    node: state.tree.selectedTopic,
+    node: state.tree.get('selectedTopic'),
   }
 }
 

app/src/components/Tree/Tree.tsx

@@ -123,9 +123,9 @@ class Tree extends React.PureComponent<Props, State> {
 
 const mapStateToProps = (state: AppState) => {
   return {
-    tree: state.tree.tree,
-    paused: state.tree.paused,
-    filter: state.tree.filter,
+    tree: state.tree.get('tree'),
+    paused: state.tree.get('paused'),
+    filter: state.tree.get('filter'),
     host: state.connection.host,
     settings: state.settings,
   }