Add a bit of debugging for where MatrixClient stops

src/Lifecycle.js

@@ -544,6 +544,9 @@ export function softLogout() {
  // been soft logged out, despite having credentials and data for a MatrixClient).
  localStorage.setItem("mx_soft_logout", "true");
 
+ // Dev note: please keep this log line around. It can be useful for track down
+ // random clients stopping in the middle of the logs.
+ console.log("Soft logout initiated");
  _isLoggingOut = true; // to avoid repeated flags
  stopMatrixClient(/*unsetClient=*/false);
  dis.dispatch({action: 'on_client_not_viable'}); // generic version of on_logged_out

src/components/views/settings/tabs/user/HelpUserSettingsTab.js

@@ -71,6 +71,9 @@ export default class HelpUserSettingsTab extends React.Component {
  _onClearCacheAndReload = (e) => {
  if (!PlatformPeg.get()) return;
 
+ // Dev note: please keep this log line, it's useful when troubleshooting a MatrixClient suddenly
+ // stopping in the middle of the logs.
+ console.log("Clear cache & reload clicked");
  MatrixClientPeg.get().stopClient();
  MatrixClientPeg.get().store.deleteAllData().done(() => {
  PlatformPeg.get().reload();