add check so that an unevenstack only gets added if it actually has something.

src/main.lua

@@ -674,7 +674,7 @@ local function VP_splitstack(_stack, x)
         buf[i] = v
         ind = ind + 1
     end
-    table.insert(stacks, buf)
+    if VP_lengthofdict(buf) > 0 then table.insert(stacks, buf) end
 
     local out = {
         height=height,
@@ -805,6 +805,8 @@ local function randomstr(length)
     return out
 end
 
+
+
 while true do
     integritycheck()
     local action = selopt({