BUG/MINOR: http-fetch: Don't block HTTP sample fetch eval in HTTP_MSG_ERROR state

It was inherited from the legacy HTTP mode, but the message parsing is
handled by the underlying mux now. Thus, if a message is in HTTP_MSG_ERROR
state, it is just an analysis error and not a parsing error. So there is no
reason to block the HTTP sample fetch evaluation in this case.

This patch could be backported in all stable versions (For the 2.0, only the
htx part must be updated).

(cherry picked from commit 5aab0a30c5090f54b3e797cb1644b3215d9d6c3c)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit 6efffd09cff6da32986eef24711ab7e23204c59c)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 365cd65b6811b0a4e0ee0ccd61e741ab6942abfe)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 2b483214cc76fd145183380704334e27b3d07a6e)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed