chore: fix typo and add missing extend_instance call

Author: mootz12

pool/src/contract.rs

@@ -428,6 +428,8 @@ impl Pool for PoolContract {
     }
 
     fn set_reserve(e: Env, asset: Address) -> u32 {
+        storage::extend_instance(&e);
+
         let index = pool::execute_set_reserve(&e, &asset);
 
         PoolEvents::set_reserve(&e, asset, index);

pool/src/emissions/manager.rs

@@ -136,12 +136,12 @@ fn update_reserve_emission_eps(
         }
         // determine the amount of tokens not emitted from the last config
         if emission_data.expiration > e.ledger().timestamp() {
-            let time_left_tell_exp = emission_data.expiration - e.ledger().timestamp();
+            let time_left_till_exp = emission_data.expiration - e.ledger().timestamp();
 
             // Eps is scaled by 14 decimals
-            let tokens_to_emit_tell_exp =
-                i128(emission_data.eps).fixed_mul_floor(e, &i128(time_left_tell_exp), &SCALAR_7);
-            tokens_left_to_emit += tokens_to_emit_tell_exp;
+            let tokens_to_emit_till_exp =
+                i128(emission_data.eps).fixed_mul_floor(e, &i128(time_left_till_exp), &SCALAR_7);
+            tokens_left_to_emit += tokens_to_emit_till_exp;
         }
 
         let eps = u64(tokens_left_to_emit * SCALAR_7 / (7 * 24 * 60 * 60)).unwrap_optimized();