- fix: check if bombsource exists when exploding a projectile with a …

…XF_NOALLIES flag

src/playsim/p_map.cpp

@@ -6169,7 +6169,7 @@ int P_RadiusAttack(AActor *bombspot, AActor *bombsource, int bombdamage, double
 			continue;
 
 		//[inkoalawetrust] Don't harm actors friendly to the explosions' source. But do harm the source.
-		if ((flags & RADF_NOALLIES) && bombsource->IsFriend(thing) && !(thing == bombsource || thing == bombspot))
+		if ((flags & RADF_NOALLIES) && bombsource && bombsource->IsFriend(thing) && !(thing == bombsource || thing == bombspot))
 			continue;
 
 		if (bombsource && thing != bombsource && bombsource->player && P_ShouldPassThroughPlayer(bombsource, thing))