From fd70dbf1c4af0345623da4fc0e197dabed97d850 Mon Sep 17 00:00:00 2001
From: SkyratBot <59378654+SkyratBot@users.noreply.github.com>
Date: Sun, 14 Jan 2024 06:36:44 +0100
Subject: [PATCH] [MIRROR] [NO GBP] Chem Heater with empty buffers can be
 refilled again [MDB IGNORE] (#26109)

* [NO GBP] Chem Heater with empty buffers can be refilled again (#80934)

## About The Pull Request
- Fixes #80933

Should check if beaker has the buffer and not the machine

## Changelog
:cl:
fix: chem heater with empty buffers can be refilled again
/:cl:

* [NO GBP] Chem Heater with empty buffers can be refilled again

---------

Co-authored-by: SyncIt21 <110812394+SyncIt21@users.noreply.github.com>
---
 code/modules/reagents/chemistry/machinery/chem_heater.dm | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/code/modules/reagents/chemistry/machinery/chem_heater.dm b/code/modules/reagents/chemistry/machinery/chem_heater.dm
index 54b87947ab2..b5a43adb4cb 100644
--- a/code/modules/reagents/chemistry/machinery/chem_heater.dm
+++ b/code/modules/reagents/chemistry/machinery/chem_heater.dm
@@ -366,12 +366,11 @@
 
 	//trying to absorb buffer from currently inserted beaker
 	if(volume < 0)
-		var/datum/reagent/buffer_reagent = reagents.has_reagent(buffer_type)
-		if(!buffer_reagent)
+		if(!beaker.reagents.has_reagent(buffer_type))
 			var/name = initial(buffer_type.name)
 			say("Unable to find [name] in beaker to draw from! Please insert a beaker containing [name].")
 			return FALSE
-		beaker.reagents.trans_to(src, (reagents.maximum_volume / 2) - buffer_reagent.volume, target_id = buffer_type)
+		beaker.reagents.trans_to(src, (reagents.maximum_volume / 2) - reagents.get_reagent_amount(buffer_type), target_id = buffer_type)
 		return TRUE
 
 	//trying to inject buffer into currently inserted beaker