We treat false as empty table if the default value is table

lua/cmp/utils/misc.lua

@@ -38,6 +38,11 @@ misc.merge = function(v1, v2)
   if v1 == nil then
     return v2
   end
+
+  -- treat false as {} if the default value is table.
+  if merge2 and v1 == false then
+    return {}
+  end
   return v1
 end
 

lua/cmp/utils/misc_spec.lua

@@ -22,8 +22,8 @@ describe('misc', function()
         b = 1
       }
     })
-    assert.are.equal(merged.a, false)
-
+    assert.are.equal(type(merged.a), 'table')
+    assert.are.equal(vim.tbl_isempty(merged.a), true)
   end)
 end)