the following Traceback can be found in the logs (the test itself is not
executed)

```
Traceback (most recent call last):
  File "/tmp/tmpiottroee/galaxy-dev/lib/galaxy/jobs/runners/__init__.py", line 291, in prepare_job
    job_wrapper.prepare()
  File "/tmp/tmpiottroee/galaxy-dev/lib/galaxy/jobs/__init__.py", line 1254, in prepare
    ) = tool_evaluator.build()
  File "/tmp/tmpiottroee/galaxy-dev/lib/galaxy/tools/evaluation.py", line 566, in build
    global_tool_logs(self._build_config_files, config_file, "Building Config Files")
  File "/tmp/tmpiottroee/galaxy-dev/lib/galaxy/tools/evaluation.py", line 96, in global_tool_logs
    raise e
  File "/tmp/tmpiottroee/galaxy-dev/lib/galaxy/tools/evaluation.py", line 92, in global_tool_logs
    return func()
  File "/tmp/tmpiottroee/galaxy-dev/lib/galaxy/tools/evaluation.py", line 633, in _build_config_files
    self.__write_workdir_file(config_filename, config_text, param_dict, is_template=is_template)
  File "/tmp/tmpiottroee/galaxy-dev/lib/galaxy/tools/evaluation.py", line 756, in __write_workdir_file
    value = fill_template(content, context=context, python_template_version=self.tool.python_template_version)
  File "/tmp/tmpiottroee/galaxy-dev/lib/galaxy/util/template.py", line 143, in fill_template
    raise first_exception or e
  File "/tmp/tmpiottroee/galaxy-dev/lib/galaxy/util/template.py", line 87, in fill_template
    return unicodify(t, log_exception=False)
  File "/tmp/tmpiottroee/galaxy-dev/lib/galaxy/util/__init__.py", line 1153, in unicodify
    value = str(value)
  File "/home/berntm/.planemo/gx_venv_3/lib/python3.10/site-packages/Cheetah/Template.py", line 1053, in __unicode__
    return getattr(self, mainMethName)()
  File "cheetah_DynamicallyCompiledCheetahTemplate_1705952649_1165519_57877.py", line 119, in respond
  File "cheetah_DynamicallyCompiledCheetahTemplate_1705952649_1165519_57877.py", line 102, in stringify
  File "cheetah_DynamicallyCompiledCheetahTemplate_1705952649_1165519_57877.py", line 113, in stringify
AttributeError: 'TreeDict' object has no attribute 'is_collection'
```

works

This reverts commit 87b8fb1.