When using right-click to pick up pipes, they are not going back into inventory and deleting.

`attempted index: pipes of non-table: null
function: pipeRemove -- file: zpipe.lua line # 196 | MOD: [B42] Drip Irrigation
function: pipeRemoveTile -- file: zpipe.lua line # 176 | MOD: [B42] Drip Irrigation
function: onPickUp -- file: zpipe.lua line # 223 | MOD: [B42] Drip Irrigation
function: perform -- file: removePipeAction.lua line # 43 | MOD: [B42] Drip Irrigation
java.lang.RuntimeException: attempted index: pipes of non-table: null
at se.krka.kahlua.vm.KahluaThread.tableget(KahluaThread.java:1667)
at se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:479)
at se.krka.kahlua.vm.KahluaThread.call(KahluaThread.java:173)
at se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1963)
at se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1760)
at se.krka.kahlua.integration.LuaCaller.pcall(LuaCaller.java:85)
at zombie.characters.CharacterTimedActions.LuaTimedActionNew.perform(LuaTimedActionNew.java:143)
at zombie.characters.IsoGameCharacter.updateInternal(IsoGameCharacter.java:10353)
at zombie.characters.IsoGameCharacter.update(IsoGameCharacter.java:9996)
at zombie.characters.IsoPlayer.updateInternal1(IsoPlayer.java:2228)
at zombie.characters.IsoPlayer.update(IsoPlayer.java:2207)
at zombie.MovingObjectUpdateSchedulerUpdateBucket.update(MovingObjectUpdateSchedulerUpdateBucket.java:71)
at zombie.MovingObjectUpdateScheduler.update(MovingObjectUpdateScheduler.java:155)
at zombie.iso.IsoCell.ProcessObjects(IsoCell.java:3062)
at zombie.iso.IsoCell.updateInternal(IsoCell.java:5967)
at zombie.iso.IsoCell.update(IsoCell.java:5900)
at zombie.iso.IsoWorld.updateWorld(IsoWorld.java:4158)
at zombie.iso.IsoWorld.updateInternal(IsoWorld.java:4278)
at zombie.iso.IsoWorld.update(IsoWorld.java:4192)
at zombie.gameStates.IngameState.updateInternal(IngameState.java:1811)
at zombie.gameStates.IngameState.update(IngameState.java:1507)
at zombie.gameStates.GameStateMachine.update(GameStateMachine.java:101)
at zombie.GameWindow.logic(GameWindow.java:388)
at zombie.GameWindow.frameStep(GameWindow.java:928)
at zombie.GameWindow.run_ez(GameWindow.java:821)
at zombie.GameWindow.mainThread(GameWindow.java:619)
at java.base/java.lang.Thread.run(Unknown Source)
`