check if client is undefined and not empty string

src/components/ServerConfigInput.jsx

@@ -76,8 +76,10 @@ class Component extends PureComponent {
     }
 
     let clientId = ''
-    if (this.props.serverConfig && this.props.serverConfig.client_id) {
+    if (this.props.serverConfig && typeof this.props.serverConfig.client_id !== 'undefined') {
       clientId = this.props.serverConfig.client_id
+      this.state.client_id = this.props.serverConfig.client_id
+      console.error("Setting clientid to serverconfig", clientId)
     } else if (this.state && this.state.client_id) {
       clientId = this.state.client_id
     }