Prevent duplicate alter types on call side

Closes #3533944

added 5 commits

• acf84811 - Test non-implemented and repeated alter types.
• aee43a89 - Test duplicate alter hook listeners.
• 2ab83e0a - Call array_unique() in alter(), to avoid notice for repeated hooks.
• f5a421d4 - Trigger a notice on non-unique alter types.
• a070191b - Prevent non-unique alter types with hook_form_BASE_FORM_ID_alter().

Compare with previous version

added 4 commits

• 9694828d - Add FormAlterTest kernel test.
• 8a65e0d6 - Call array_unique() in alter(), to avoid notice for repeated hooks.
• b4cb1826 - Trigger a notice on non-unique alter types.
• d81d2343 - Prevent non-unique alter types with hook_form_BASE_FORM_ID_alter().

Compare with previous version

added 4 commits

• 8a421e62 - Add FormAlterTest kernel test.
• 4462c9d7 - Call array_unique() in alter(), to avoid notice for repeated hooks.
• 144a5c5e - Trigger a notice on non-unique alter types.
• fa6c3824 - Prevent non-unique alter types with hook_form_BASE_FORM_ID_alter().

Compare with previous version

added 6 commits

• 9b03a82b - Test non-implemented and repeated alter types.
• 86e1ac23 - Test duplicate alter hook listeners.
• 569ef79b - Add FormAlterTest kernel test.
• 49efb5dc - Call array_unique() in alter(), to avoid notice for repeated hooks.
• 548a85cc - Trigger a notice on non-unique alter types.
• a2cd0a91 - Prevent non-unique alter types with hook_form_BASE_FORM_ID_alter().

Compare with previous version

added 9 commits

• 3fec1ac9 - Test non-implemented and repeated alter types.
• 02836d0f - Test duplicate alter hook listeners.
• 7f11bfc9 - Add FormAlterTest kernel test.
• 6325a206 - Test effect of non-unique alter types on ordering rules.
• 3531692c - Remove leftover part of a doc comment on assertAlterCallOrder().
• c2dc253e - Call array_unique() in getCombinedListeners(), to avoid notice for repeated hooks.
• 031f26a3 - Call array_unique() in alter() instead of in getCombinedListeners().
• 10d261dd - Trigger a notice on non-unique alter types.
• a60f18f6 - Prevent non-unique alter types with hook_form_BASE_FORM_ID_alter().

Compare with previous version

Tugboat has finished building the preview for this merge request!

Link:

• https://mr12752-c4iwwucv9iuwfzajxtvas5sdkwxhtswg.tugboatqa.com

Dashboard:

• https://dashboard.tugboatqa.com/6878155e709e53b8bba047ad