ca invisible bug and chasecam fixes

Author: ozy24

src/g_chase.cpp

@@ -260,6 +260,7 @@ void FollowNext(gentity_t *ent) {
 
 	ent->client->follow_target = e;
 	ent->client->follow_update = true;
+	ent->client->sess.spectator_state = SPECTATOR_FOLLOW;
 }
 
 void FollowPrev(gentity_t *ent) {
@@ -285,6 +286,7 @@ void FollowPrev(gentity_t *ent) {
 
 	ent->client->follow_target = e;
 	ent->client->follow_update = true;
+	ent->client->sess.spectator_state = SPECTATOR_FOLLOW;
 }
 
 void FollowCycle(gentity_t *ent, int dir) {
@@ -343,6 +345,7 @@ void GetFollowTarget(gentity_t *ent) {
 				continue;
 			ent->client->follow_target = ec;
 			ent->client->follow_update = true;
+			ent->client->sess.spectator_state = SPECTATOR_FOLLOW;
 			UpdateChaseCam(ent);
 			return;
 		}

src/p_client.cpp

@@ -2942,6 +2942,9 @@ void ClientSpawn(gentity_t *ent) {
 	}
 	ent->client->ps.stats[STAT_SHOW_STATUSBAR] = 1;
 
+	// ensure playing players are visible (clear SVF_NOCLIENT that may have been set by Entities_Reset)
+	ent->svflags &= ~SVF_NOCLIENT;
+
 	// [Paril-KEX] a bit of a hack, but landmark spawns can sometimes cause
 	// intersecting spawns, so we'll do a sanity check here...
 	if (spawn_from_begin) {