fix(vpaas): Avoid url blipping on invite dialog

react/features/dynamic-branding/functions.js

         return `${baseUrl}?conferenceFqn=${encodeURIComponent(fqn)}`;
     }
 }
+
+/**
+ * Selector used for getting the load state of the dynamic branding data.
+ *
+ * @param {Object} state - Global state of the app.
+ * @returns {boolean}
+ */
+export function isDynamicBrandingDataLoaded(state: Object) {
+    return state['features/dynamic-branding'].customizationReady;
+}

react/features/dynamic-branding/reducer.js

     backgroundImageUrl: '',
 
     /**
-     * Flag indicating that the logo (JitsiWatermark) can be displayed.
-     * This is used in order to avoid image flickering.
+     * Flag indicating that the branding data can be displayed.
+     * This is used in order to avoid image flickering / text changing(blipping).
      *
      * @public
      * @type {boolean}

react/features/invite/components/add-people-dialog/web/AddPeopleDialog.js

 import { JitsiRecordingConstants } from '../../../../base/lib-jitsi-meet';
 import { connect } from '../../../../base/redux';
 import { isVpaasMeeting } from '../../../../billing-counter/functions';
+import { isDynamicBrandingDataLoaded } from '../../../../dynamic-branding/functions';
 import EmbedMeetingTrigger from '../../../../embed-meeting/components/EmbedMeetingTrigger';
 import { getActiveSession } from '../../../../recording';
 import { updateDialInNumbers } from '../../../actions';
         _dialIn: dialIn,
         _embedMeetingVisible: !isVpaasMeeting(state) && isSharingEnabled(sharingFeatures.embed),
         _dialInVisible: isSharingEnabled(sharingFeatures.dialIn),
-        _urlSharingVisible: isSharingEnabled(sharingFeatures.url),
+        _urlSharingVisible: isDynamicBrandingDataLoaded(state) && isSharingEnabled(sharingFeatures.url),
         _emailSharingVisible: isSharingEnabled(sharingFeatures.email),
         _invitationText: getInviteText({ state,
             phoneNumber,