stenlarsson opened a new issue, #48985:
URL: https://github.com/apache/arrow/issues/48985

   ### Describe the bug, including details regarding any error messages, 
version, and platform.
   
   https://github.com/apache/arrow/issues/48880 is marked as fixed, but I'm 
still getting corrupted values.
   
   It is very difficult to create a test case that reliably demonstrates the 
problem. This defines a finaliser on the string literal, but we need to go 
through some hoops to make sure it is not in scope of any block.
   
   ```ruby
   # Licensed to the Apache Software Foundation (ASF) under one
   # or more contributor license agreements.  See the NOTICE file
   # distributed with this work for additional information
   # regarding copyright ownership.  The ASF licenses this file
   # to you under the Apache License, Version 2.0 (the
   # "License"); you may not use this file except in compliance
   # with the License.  You may obtain a copy of the License at
   #
   #   http://www.apache.org/licenses/LICENSE-2.0
   #
   # Unless required by applicable law or agreed to in writing,
   # software distributed under the License is distributed on an
   # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   # KIND, either express or implied.  See the License for the
   # specific language governing permissions and limitations
   # under the License.
   require 'objspace'
   
   class TestExecutePlan < Test::Unit::TestCase
     class LiveChecker
       def initialize
         @live = true
       end
   
       def check(object)
         ObjectSpace.define_finalizer(object, self.class.create_finalizer(self))
         object
       end
   
       def live?
         GC.start
         @live
       end
   
       def finalize
         @live = false
       end
   
       def self.create_finalizer(checker)
         proc { checker.finalize }
       end
     end
   
     def test_filter_expressions_live
       checker = LiveChecker.new
       table = Arrow::Table.new(
         'foo' => [1, 2],
         'bar' => %w[a b],
       )
       plan = Arrow::ExecutePlan.new
       node = plan.build_source_node(table)
       node = plan.build_filter_node(
         node,
         Arrow::FilterNodeOptions.new(
           Arrow::CallExpression.new('equal', [:bar, checker.check('a')]),
         ),
       )
       assert do
         checker.live?
       end
     end
   
     def test_project_expressions_live
       checker = LiveChecker.new
       table = Arrow::Table.new(
         'foo' => [1, 2],
         'bar' => [%w[a b], %w[c d]],
       )
       plan = Arrow::ExecutePlan.new
       node = plan.build_source_node(table)
       node = plan.build_project_node(
         node,
         Arrow::ProjectNodeOptions.new(
           [
             :foo,
             Arrow::CallExpression.new('binary_join', [:bar, 
checker.check(',')]),
           ],
           %w[foo bar],
         ),
       )
       assert do
         checker.live?
       end
     end
   end
   ```
   
   These tests pass if I add `CallExpression`, `FilterNodeOptions`, and 
`ProjectNodeOptions` to the gc_guard in loader.rb, but I'm not sure if it is 
the correct solution.
   
   ### Component(s)
   
   Ruby


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