Fix crash after loading error due to fluid texture gathering and config lookup (#8802)

src/main/java/net/minecraftforge/client/ForgeHooksClient.java

@@ -472,6 +472,8 @@ public class ForgeHooksClient
 
     public static void gatherFluidTextures(Set<Material> textures)
     {
+        if (!ModLoader.isLoadingStateValid()) return;
+
         ForgeRegistries.FLUIDS.getValues().stream()
                 .flatMap(ForgeHooksClient::getFluidMaterials)
                 .forEach(textures::add);

src/main/java/net/minecraftforge/client/loading/ClientModLoader.java

@@ -147,7 +147,7 @@ public class ClientModLoader
         boolean showWarnings = true;
         try {
             showWarnings = ForgeConfig.CLIENT.showLoadWarnings.get();
-        } catch (NullPointerException e) {
+        } catch (NullPointerException | IllegalStateException e) {
             // We're in an early error state, config is not available. Assume true.
         }
         if (!showWarnings) {