Enable timestamp update in presence refresh

app/src/main/assets/linphonerc_default

@@ -10,6 +10,7 @@ sip_port=-1
 sip_tcp_port=-1
 sip_tls_port=-1
 media_encryption=none
+update_presence_model_timestamp_before_publish_expires_refresh=1
 
 [net]
 #Because dynamic bitrate adaption can increase bitrate, we must allow "no limit"

app/src/main/java/org/linphone/core/CoreContext.kt

@@ -446,6 +446,10 @@ class CoreContext(
         computeUserAgent()
 
         val fiveOneMigrationRequired = core.config.getBool("app", "migration_5.1_required", true)
+        if (fiveOneMigrationRequired) {
+            core.config.setBool("sip", "update_presence_model_timestamp_before_publish_expires_refresh", true)
+        }
+
         for (account in core.accountList) {
             if (account.params.identityAddress?.domain == corePreferences.defaultDomain) {
                 var paramsChanged = false