Fix nested tracing scopes
Example: INFO request{remote_addr=127.0.0.1:34362 method=GET uri=/static/login-emblem.svg version=HTTP/1.1}:request{remote_addr=127.0.0.1:34366 method=GET uri=/static/login-img.svg version=HTTP/1.1}: hb: processing request
Edited by Ole Martin Ruud