fix for replaces

lib/call-session.js

@@ -326,7 +326,7 @@ Duration=${payload.duration} `
    */
   async replaces(req, res) {
     try {
-      let opts = Object.assign(this.rtpEngineOpts.offer, {sdp: req.body});
+      let opts = Object.assign({}, this.rtpEngineOpts.uas.mediaOpts, {sdp: req.body});
       let response = await this.offer(opts);
       if ('ok' !== response.result) {
         res.send(488);
@@ -334,8 +334,8 @@ Duration=${payload.duration} `
       }
       this.logger.info({opts, response}, 'sent offer for reinvite to rtpengine');
       const sdp = await this.uac.modify(response.sdp);
-      opts = Object.assign(this.rtpEngineOpts.answer, {sdp, 'to-tag': this.toTag});
-      Object.assign(this.rtpEngineOpts.offer, {'to-tag': this.toTag});
+      opts = Object.assign({}, this.rtpEngineOpts.uac.mediaOpts, {sdp, 'to-tag': this.toTag});
+      Object.assign(this.rtpEngineOpts.uas.mediaOpts, {'to-tag': this.toTag});
       response = await this.answer(opts);
       if ('ok' !== response.result) {
         res.send(488);
@@ -395,7 +395,7 @@ Duration=${payload.duration} `
         direction,
         sdp: req.body,
       };
-      if (reason) opts.flags.push('reset');
+      //if (reason && opts.flags && !opts.flags.includes('reset')) opts.flags.push('reset');
 
       let response = await this.offer(opts);
       if ('ok' !== response.result) {
@@ -406,7 +406,7 @@ Duration=${payload.duration} `
       /* if this is a re-invite from the FS to change media anchoring, avoid sending the reinvite out */
       let sdp;
       if (reason && dlg.type === 'uac' && ['release-media', 'anchor-media'].includes(reason)) {
-        this.logger.info(`got a reinvite from FS to ${reason}`);
+        this.logger.info({response}, `got a reinvite from FS to ${reason}`);
         sdp = dlg.other.remote.sdp;
       }
       else {