Merge branch 'main' of https://github.com/secondlife/viewer

# Conflicts:
#	indra/newview/llworldmapmessage.cpp

indra/newview/app_settings/settings.xml

@@ -18155,7 +18155,7 @@ Change of this parameter will affect the layout of buttons in notification toast
       <key>Type</key>
       <string>S32</string>
       <key>Value</key>
-      <integer>1</integer>
+      <integer>0</integer>
     </map>
     <key>WaterEditPresets</key>
     <map>

indra/newview/lllandmarkactions.cpp

@@ -553,6 +553,11 @@ void LLLandmarkActions::copySLURLtoClipboard(const LLUUID& landmarkInventoryItem
 
 void copy_slurl_to_clipboard_callback(const std::string& slurl)
 {
+    if (slurl.empty())
+    {
+        LLNotificationsUtil::add("LandmarkLocationUnknown");
+        return;
+    }
     gViewerWindow->getWindow()->copyTextToClipboard(utf8str_to_wstring(slurl));
     LLSD args;
     args["SLURL"] = slurl;