Refine the fix in previous commit

Author: Starkku

src/Misc/Hooks.BugFixes.cpp

@@ -922,13 +922,12 @@ DEFINE_HOOK(0x705D74, TechnoClass_GetRemapColour_DisguisePalette, 0x8)
 // Fixes an edge case crash caused by temporal targeting enslaved infantry.
 DEFINE_HOOK(0x71ADE4, TemporalClass_Release_SlaveTargetFix, 0x5)
 {
-	GET(TemporalClass* const, pThis, ESI);
+	enum { ReturnFromFunction = 0x71AE47 };
 
-	if (pThis->PrevTemporal == pThis)
-		pThis->PrevTemporal = nullptr;
+	GET(TemporalClass* const, pThis, ESI);
 
-	if (pThis->NextTemporal == pThis)
-		pThis->NextTemporal = nullptr;
+	if (!pThis->Target)
+		return ReturnFromFunction;
 
 	return 0;
 }