Add FIXME comment

crates/matrix-sdk-crypto/src/machine.rs

@@ -314,6 +314,10 @@ impl OlmMachine {
             }
         };
 
+        // FIXME: This is a workaround due to `regenerate_olm` that was clearing backup
+        // state. Backups shouldn't be automatically enabled.
+        // The OlmMachine doesn't get enough info from the homeserver for this to work
+        // reliably. I don't belong here.
         let saved_keys = store.load_backup_keys().await?;
         let maybe_backup_key = saved_keys.decryption_key.and_then(|k| {
             if let Some(version) = saved_keys.backup_version {