[SR-Users] why msg_apply_changes() from REQUEST_ROUTE only

[smititelu]

Hello,

I don't understand why msg_apply changes() can be called from 
REQUEST_ROUTE *only*. Can someone explain? Can this be extended to 
*FAILURE_ROUTES *also?

Basically I need to call this from FAILURE_ROUTES in order to avoid 
double SDP for rtpengine offers. Searching in the mailing list I could 
see that there could be other means of handling this like keeping and 
reading the SDP from an avp(write/read_sdp_pv), but I find the above 
method pretty straightforward.

Thanks,
Stefan
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