reverses incorrect logic introduced by r243200

The decoding of the replace_id did not need to be broken
up in this instance.  This was brought to my attention
again because it caused a segfault when the from or to
tags were not present in the "Replaces" header.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@265366 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -20336,6 +20336,7 @@ static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int
 			ast_debug(3, "INVITE part of call transfer. Replaces [%s]\n", p_replaces);
 		/* Create a buffer we can manipulate */
 		replace_id = ast_strdupa(p_replaces);
+		ast_uri_decode(replace_id);
 
 		if (!p->refer && !sip_refer_allocate(p)) {
 			transmit_response_reliable(p, "500 Server Internal Error", req);
@@ -20368,10 +20369,6 @@ static int handle_request_invite(struct sip_pvt *p, struct sip_request *req, int
 			}
 		}
 
-		ast_uri_decode(fromtag);
-		ast_uri_decode(totag);
-		ast_uri_decode(replace_id);
-
 		if (sipdebug)
 			ast_debug(4, "Invite/replaces: Will use Replace-Call-ID : %s Fromtag: %s Totag: %s\n",
 					  replace_id,