MT#55283 Fix Issue with pcap based recording getting overwritten

Closes #2025
Closes #2026

Change-Id: I9f49127725b867b5fc9e9a852e6688e2c1d10b49
(cherry picked from commit 2639d9c0d1)

daemon/recording.c

@@ -781,6 +781,10 @@ void recording_finish(call_t *call, bool discard) {
 
 	g_slice_free1(sizeof(*(recording)), recording);
 	call->recording = NULL;
+
+	// clear the meta prefix to esure that pcaps for subsequent
+	// start recordings dont overwrite previous ones
+	call->recording_meta_prefix = STR_NULL;
 }