It seems to save automatically.

noobanidus · noobanidus · commit b9c743d98dde · 2024-03-25T18:27:16.000+10:00
diff --git a/src/main/java/noobanidus/mods/lootr/data/SpecialChestInventory.java b/src/main/java/noobanidus/mods/lootr/data/SpecialChestInventory.java
@@ -120,7 +120,6 @@ public ItemStack removeItem(int index, int count) {
     ItemStack itemstack = ContainerHelper.removeItem(this.contents, index, count);
     if (!itemstack.isEmpty()) {
       this.setChanged();
-      // TODO: Trigger save?
     }
 
     return itemstack;

Original file line number	Diff line number	Diff line change
`@@ -120,7 +120,6 @@ public ItemStack removeItem(int index, int count) {`
`120`	`120`	`ItemStack itemstack = ContainerHelper.removeItem(this.contents, index, count);`
`121`	`121`	`if (!itemstack.isEmpty()) {`
`122`	`122`	`this.setChanged();`
`123`		`- // TODO: Trigger save?`
`124`	`123`	`}`
`125`	`124`
`126`	`125`	`return itemstack;`