Don't delete hammer when hammer dashing through pots and the sprite limit is reached

Hook for frozen enemies killed with hammer (if there's an item they won't automatically drop the freeze prize now)

keydrop/standing_items.asm

@@ -12,6 +12,9 @@ org $09C327
 org $06F976
 	JSL RevealSpriteDrop : NOP
 
+org $06E3C4
+	JSL RevealSpriteDrop2 : NOP
+
 org $06926e ; <- 3126e - sprite_prep.asm : 2664 (LDA $0B9B : STA $0CBA, X)
 	JSL SpriteKeyPrep : NOP #2
 
@@ -284,6 +287,17 @@ RevealSpriteDrop:
 	PEA.w $06F996-1 ; change return address to .no_forced_drop of (Sprite_DoTheDeath)
 	RTL
 
+RevealSpriteDrop2:
+	LDY.w SprDropsItem, X : BEQ .normal
+		BRA .no_forced_drop
+	.normal
+	LDY.w $0CBA, X : BEQ .no_forced_drop
+		RTL
+	.no_forced_drop
+	PLA : PLA ; remove the JSL reswamturn lower 16 bits
+	PEA.w $06E3CE-1 ; change return address to .no_forced_drop of (Sprite_DoTheDeath)
+	RTL
+
 BitFieldMasks:
 dw $8000, $4000, $2000, $1000, $0800, $0400, $0200, $0100
 dw $0080, $0040, $0020, $0010, $0008, $0004, $0002, $0001
@@ -444,6 +458,7 @@ CheckSprite_Spawn:
 RTL
 .check
 	LDA $0D : CMP #$08 : BNE +
+	LDA $0372 : BNE .error
 		LDX #$0F
 
 		; loop looking for a Sprite with state 0A (carried by the player)