Logging same InnerException throws an error

[catalingavan]

Logging two exceptions which have the same inner exception is throwing an error.

var logger = new Logger();

var innerEx = new Exception($"Inner exception: {Guid.NewGuid()}");
logger.Error(new Exception("Exception 1", innerEx));
logger.Error(new Exception("Exception 2", innerEx));

System.ArgumentException:
Item has already been added. Key in dictionary: 'KissLog-ExceptionLogged-2f21ed7d-09e6-47e2-b0ad-3b1172e79581'