diff --git a/lib/zip/file.rb b/lib/zip/file.rb
index 124a2f80..80f5d8b0 100644
--- a/lib/zip/file.rb
+++ b/lib/zip/file.rb
@@ -103,8 +103,6 @@ def initialize(path_or_io, create: false, buffer: false, **options)
         raise Error, "File #{@name} not found"
       end
 
-      @stored_entries      = @cdir.entries.map(&:dup)
-      @stored_comment      = @cdir.comment
       @restore_ownership   = options[:restore_ownership]
       @restore_permissions = options[:restore_permissions]
       @restore_times       = options[:restore_times]
@@ -318,10 +316,13 @@ def close
     # Returns true if any changes has been made to this archive since
     # the previous commit
     def commit_required?
+      return true if @create || @cdir.dirty?
+
       @cdir.each do |e|
-        return true if e.dirty
+        return true if e.dirty?
       end
-      comment != @stored_comment || entries != @stored_entries || @create
+
+      false
     end
 
     # Searches for entry with the specified name. Returns nil if