calls: fix returning to main view from setting while in a call

This fixes the call stack view not being reset when exiting the
settings.

Gitlab: #417
Change-Id: I1af534a1a164a28e1d29b9a4064cc0c78496557c

src/calladapter.cpp

@@ -232,6 +232,9 @@ CallAdapter::onShowIncomingCallView(const QString& accountId, const QString& con
     if (call.isOutgoing) {
         if (isCallSelected) {
             // don't reselect
+            // TODO: this signal can be renamed to conversationReselected,
+            // isCallSelected and any other similar logic can be removed
+            // and calling selectConversation should be sufficient
             Q_EMIT lrcInstance_->conversationUpdated(convInfo.uid, accountId);
         }
     } else {

src/lrcinstance.cpp

@@ -434,6 +434,11 @@ LRCInstance::poplastConference(const QString& confId)
 void
 LRCInstance::selectConversation(const QString& convId, const QString& accountId)
 {
+    // reselection can be used to update the conversation
+    if (convId == selectedConvUid_ && accountId == currentAccountId_) {
+        Q_EMIT conversationUpdated(convId, accountId);
+        return;
+    }
     // if the account is not currently selected, do that first, then
     // proceed to select the conversation
     if (!accountId.isEmpty() && accountId != getCurrentAccountId()) {

src/mainview/MainView.qml

@@ -138,7 +138,7 @@ Rectangle {
         if (checkCurrentCall && currentAccountIsCalling()) {
             var callConv = UtilsAdapter.getCallConvForAccount(
                         LRCInstance.currentAccountId)
-            LRCInstance.selectConversation(callConv)
+            LRCInstance.selectConversation(callConv, currentAccountId)
             CallAdapter.updateCall(callConv, currentAccountId)
         } else {
             showWelcomeView()