[Varnish] #1251: Regsuball doesn't replace all occurrences

[Varnish]

#1251: Regsuball doesn't replace all occurrences
--------------------+----------------------
 Reporter:  tmotyl  |       Type:  defect
   Status:  new     |   Priority:  normal
Milestone:          |  Component:  varnishd
  Version:  2.1.5   |   Severity:  normal
 Keywords:          |
--------------------+----------------------
 It seems that regsuball is not replacing all occurances of a regular
 expression.
 I have code like this in my ACL
 {{{
 set req.url = regsuball(req.url, "(\?|&)(utm_[a-zA-Z]+)=[^&]+&?", "\1");
 }}}
 for url's like
 {{{
 /uk/sale.html?utm_medium=game&utm_source=ad+network&utm_campaign=post+holiday+sale&utm_content=320x50
 }}}
 Varnish returns
 {{{
 /uk/sale.html?utm_source=ad+network&utm_content=320x50
 }}}

 I also tried
 {{{
 set req.url = regsuball(req.url,
 "(\?|&)(utm_source|utm_medium|utm_content|utm_campaign)=[^&]+&?", "\1");
 }}}
 but the result is the same.
 I'm using Varnish 2.1.5 on ubuntu.

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1251>
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