Fix test.

crates/api_common/src/utils.rs

@@ -1128,10 +1128,13 @@ mod tests {
       "https://lemmy-alpha/api/v3/image_proxy?url=http%3A%2F%2Flemmy-beta%2Fimage.png",
       proxied.as_str()
     );
+
+    // This fails, because the details can't be fetched without pictrs running,
+    // And a remote image won't be inserted.
     assert!(
       RemoteImage::validate(&mut context.pool(), remote_image.into())
         .await
-        .is_ok()
+        .is_err()
     );
   }
 

crates/db_schema/src/impls/images.rs

@@ -12,11 +12,12 @@ use crate::{
   utils::{get_conn, DbPool},
 };
 use diesel::{
+  dsl::exists,
   insert_into,
   result::Error,
+  select,
   ExpressionMethods,
   NotFound,
-  OptionalExtension,
   QueryDsl,
 };
 use diesel_async::{AsyncPgConnection, RunQueryDsl};