fix cave air edge case in isEmpty check

Author: beanbag44

src/main/kotlin/com/lambda/interaction/construction/simulation/checks/BreakChecker.kt

@@ -119,6 +119,8 @@ class BreakChecker @SimCheckerDsl private constructor(simInfo: SimInfo)
     }
 
     private suspend fun AutomatedSafeContext.checkBreaks(): Boolean {
+        if (state.isEmpty) return false
+
         if (breakConfig.avoidSupporting) player.supportingBlockPos.getOrNull()?.let { support ->
             if (support != pos) return@let
             result(BreakResult.PlayerOnTop(pos, state))
@@ -130,8 +132,6 @@ class BreakChecker @SimCheckerDsl private constructor(simInfo: SimInfo)
             return simInfo(pos, state, TargetState.Solid(emptySet()))?.checkPlacements() ?: true
         }
 
-        if (state.isEmpty) return false
-
         if (breakConfig.avoidLiquids && affectsFluids()) return true
 
         val swapStack = getSwapStack() ?: return true

src/main/kotlin/com/lambda/util/BlockUtils.kt

@@ -305,7 +305,7 @@ object BlockUtils {
         return speedMultiplier
     }
 
-    val BlockState.isEmpty get() = matches(emptyState)
+    val BlockState.isEmpty get() = isAir || matches(emptyState)
     val BlockState.isNotEmpty get() = !isEmpty
     val BlockState.hasFluid get() = !fluidState.isEmpty
     val BlockState.emptyState: BlockState get() = fluidState.blockState