Fix /camp rest timer exploit

zone/client_process.cpp

@@ -1933,12 +1933,11 @@ void Client::DoEnduranceUpkeep() {
 		SetEndurUpkeep(false);
 }
 
-void Client::CalcRestState() {
-
+void Client::CalcRestState()
+{
 	// This method calculates rest state HP and mana regeneration.
 	// The client must have been out of combat for RuleI(Character, RestRegenTimeToActivate) seconds,
 	// must be sitting down, and must not have any detrimental spells affecting them.
-	//
 	if(!RuleB(Character, RestRegenEnabled))
 		return;
 
@@ -1950,6 +1949,9 @@ void Client::CalcRestState() {
 	if(!rest_timer.Check(false))
 		return;
 
+	// so we don't have aggro, our timer has expired, we do not want this to cause issues
+	m_pp.RestTimer = 0;
+
 	uint32 buff_count = GetMaxTotalSlots();
 	for (unsigned int j = 0; j < buff_count; j++) {
 		if(buffs[j].spellid != SPELL_UNKNOWN) {
@@ -1960,7 +1962,6 @@ void Client::CalcRestState() {
 	}
 
 	ooc_regen = true;
-
 }
 
 void Client::DoTracking()