feat: fix tests

Author: demetriusfeijoo

packages/field-plugin/src/messaging/pluginMessage/containerToPluginMessage/LoadedMessage.ts

@@ -40,6 +40,7 @@ export const isLoadedMessage = (data: unknown): data is LoadedMessage =>
   hasKey(data, 'userId') &&
   (typeof data.userId === 'number' || typeof data.userId === 'undefined') &&
   hasKey(data, 'userPermissions') &&
+  data.userPermissions !== null &&
   (typeof data.userPermissions === 'object' ||
     typeof data.userPermissions === 'undefined') &&
   hasKey(data, 'isSpaceAdmin') &&

packages/field-plugin/src/messaging/pluginMessage/containerToPluginMessage/StateChangedMessage.ts

@@ -40,6 +40,7 @@ export const isStateMessage = (data: unknown): data is StateChangedMessage =>
   hasKey(data, 'userId') &&
   (typeof data.userId === 'number' || typeof data.userId === 'undefined') &&
   hasKey(data, 'userPermissions') &&
+  data.userPermissions !== null &&
   (typeof data.userPermissions === 'object' ||
     typeof data.userPermissions === 'undefined') &&
   hasKey(data, 'isSpaceAdmin') &&