diff --git a/docs/rh-log.txt b/docs/rh-log.txt
index 37012f1ae..2e176be0a 100644
--- a/docs/rh-log.txt
+++ b/docs/rh-log.txt
@@ -1,4 +1,10 @@
 June 15, 2008 (Changes by Graf Zahl)
+- Added a read barrier to player_t::PrewmorphWeapon.
+- Fixed: After spawning a deathmatch player P_PlayerStartStomp must
+  be called.
+- Fixed: SpawnThings must check if the players were spawned before
+  calling P_PlayerStartStomp.
+- Fixed typo in flat scroll interpolation.
 - Changed FImageCollection to return translated texture indices so
   that animated icons can be done with it.
 - Changed FImageCollection to use a TArray to hold its data.
diff --git a/src/d_player.h b/src/d_player.h
index dbe849488..a3865d0cc 100644
--- a/src/d_player.h
+++ b/src/d_player.h
@@ -256,7 +256,7 @@ public:
 	BYTE		MorphedPlayerClass;		// [MH] (for SBARINFO) class # for this player instance when morphed
 	int			MorphStyle;				// which effects to apply for this player instance when morphed
 	const PClass *MorphExitFlash;		// flash to apply when demorphing (cache of value given to P_MorphPlayer)
-	AWeapon		*PremorphWeapon;		// ready weapon before morphing
+	TObjPtr<AWeapon>	PremorphWeapon;		// ready weapon before morphing
 	int			chickenPeck;			// chicken peck countdown
 	int			jumpTics;				// delay the next jump for a moment
 
diff --git a/src/g_game.cpp b/src/g_game.cpp
index 7a6d206f3..9b28d939b 100644
--- a/src/g_game.cpp
+++ b/src/g_game.cpp
@@ -1372,7 +1372,8 @@ void G_DeathMatchSpawnPlayer (int playernum)
 			spot->type = playernum+9100-4;
 	}
 
-	P_SpawnPlayer (spot);
+	AActor *mo = P_SpawnPlayer (spot);
+	if (mo != NULL) P_PlayerStartStomp(mo);
 }
 
 //
@@ -1443,7 +1444,8 @@ void G_DoReborn (int playernum, bool freshbot)
 
 		if (G_CheckSpot (playernum, &playerstarts[playernum]) )
 		{
-			P_SpawnPlayer (&playerstarts[playernum]);
+			AActor *mo = P_SpawnPlayer (&playerstarts[playernum]);
+			if (mo != NULL) P_PlayerStartStomp(mo);
 		}
 		else
 		{
@@ -1469,13 +1471,15 @@ void G_DoReborn (int playernum, bool freshbot)
 					{
 						playerstarts[i].type = playernum + 4001 - 4;
 					}
-					P_SpawnPlayer (&playerstarts[i]);
+					AActor *mo = P_SpawnPlayer (&playerstarts[i]);
+					if (mo != NULL) P_PlayerStartStomp(mo);
 					playerstarts[i].type = oldtype; 			// restore 
 					return;
 				}
 				// he's going to be inside something.  Too bad.
 			}
-			P_SpawnPlayer (&playerstarts[playernum]);
+			AActor *mo = P_SpawnPlayer (&playerstarts[playernum]);
+			if (mo != NULL) P_PlayerStartStomp(mo);
 		}
 	}
 }
diff --git a/src/p_setup.cpp b/src/p_setup.cpp
index 51587a539..75144278c 100644
--- a/src/p_setup.cpp
+++ b/src/p_setup.cpp
@@ -1492,7 +1492,7 @@ void P_SpawnThings (int position)
 	}
 	for(int i=0; i<MAXPLAYERS; i++)
 	{
-		if (playeringame[i])
+		if (playeringame[i] && players[i].mo != NULL)
 			P_PlayerStartStomp(players[i].mo);
 	}
 }
diff --git a/src/p_user.cpp b/src/p_user.cpp
index b2467bfcf..006e72c84 100644
--- a/src/p_user.cpp
+++ b/src/p_user.cpp
@@ -342,6 +342,7 @@ size_t player_t::PropagateMark()
 	GC::Mark(ReadyWeapon);
 	GC::Mark(ConversationNPC);
 	GC::Mark(ConversationPC);
+	GC::Mark(PremorphWeapon);
 	if (PendingWeapon != WP_NOCHANGE)
 	{
 		GC::Mark(PendingWeapon);