bindvar := strings.Builder{}
				subdb.BindVarTo(&bindvar, subdb.Statement, vv)
				sql = strings.Replace(sql, bindvar.String(), "?", 1)
			}

			subdb.Statement.SQL.Reset()
			subdb.Statement.Vars = stmt.Vars
			if strings.Contains(sql, "@") {
				clause.NamedExpr{SQL: sql, Vars: vars}.Build(subdb.Statement)
			} else {
				clause.Expr{SQL: sql, Vars: vars}.Build(subdb.Statement)
			}

					bindvar := strings.Builder{}
					cv.BindVarTo(&bindvar, subdb.Statement, vv)
					sql = strings.Replace(sql, bindvar.String(), "?", 1)
				}

				subdb.Statement.SQL.Reset()
				subdb.Statement.Vars = stmt.Vars
				if strings.Contains(sql, "@") {
					clause.NamedExpr{SQL: sql, Vars: vars}.Build(subdb.Statement)
				} else {
					clause.Expr{SQL: sql, Vars: vars}.Build(subdb.Statement)

			stopFn(0, err)
			if err == nil && notify {
				globalNotificationSys.LoadRebalanceMeta(GlobalContext, false)
			}
			rebalanceLogIf(GlobalContext, err)

			if quit {
				return
			}

			timer.Reset(randSleepFor())
		}
	}()

	rebalanceLogEvent(ctx, "Pool %d rebalancing is started", poolIdx+1)

	for {
		select {
		case <-ctx.Done():
			doneCh <- ctx.Err()
			return
		default:
		}

				return toObjectErr(err, bucket, object)
			}
		}
		// Track total bytes read from disk and written to the client.
		totalBytesRead += partLength
		// partOffset will be valid only for the first part, hence reset it to 0 for
		// the remaining parts.
		partOffset = 0
	} // End of read all parts loop.
	// Return success.
	return nil
}

// GetObjectInfo - reads object metadata and replies back ObjectInfo.

This means that now, if you set a value in a context variable before `yield`, the value would still be available after `yield` (as you would intuitively expect). And it also means that you can reset the context variable with a token afterwards.

For example, this works correctly now:

```Python
from contextvars import ContextVar
from typing import Any, Dict, Optional