[gnome-maps] sidebar: Don't show spinner if an error label is showing

[Marcus Lundblad <mlundblad src gnome org>]

commit d89f3ea6df023109de89c7ca6208cd8c47ebbe79
Author: Marcus Lundblad <ml update uu se>
Date:   Tue Mar 31 23:24:16 2020 +0200

    sidebar: Don't show spinner if an error label is showing
    
    Also reset error label when showing spinner (starting
    progress).
    
    Fixes #255

 src/sidebar.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/sidebar.js b/src/sidebar.js
index 32946654..5d8fa8b4 100644
--- a/src/sidebar.js
+++ b/src/sidebar.js
@@ -244,8 +244,9 @@ var Sidebar = GObject.registerClass({
         });
 
         this._query.connect('notify', () => {
-            if (this._query.isValid()) {
+            if (this._query.isValid() && this._errorLabel.label === '') {
                 this._instructionStack.visible_child = this._instructionSpinner;
+                this._errorLabel.label = '';
             } else if (this._instructionStack.visible_child !== this._errorLabel) {
                 if (this._query.transportation === RouteQuery.Transportation.TRANSIT) {
                     this._clearTransitOverview();