Pull Request resolves #47658 .

• I read the Generative AI policy and my contribution is either not created with the help of AI or is compatible with the policy and GNU/GPL 2 or later.

Summary of Changes

If the value for save_history is not set, the default value is set to "no".
The param "save_history" is undefined as long as the user does not save the configuration.

Testing Instructions

as decribed in #47658
Open any module andd the Version button is visible, while the Enable Versions" button is per default set to "no".

Actual result BEFORE applying this Pull Request

Open any module and the Version button is visible, while the Enable Versions" button is by default set to "no".

Expected result AFTER applying this Pull Request

Open any module andthere is no Version button, while the Enable Versions" button is by default set to "no".

Link to documentations

Please select:

• Documentation link for guide.joomla.org:

• No documentation changes for guide.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed