Steps to replicate the issue (include links if applicable):

• Go to Special:WishlistIntake.
• Edit an existing wish that already has tags assigned.
• In the Tags field, click under the existing tags.
• Manually type a tag name (e.g., "Categories").
• Click down on the keyboard to select Categories and press Enter. If you click back in the box, the only option is Categories still. You only get all the options if you manually type again.

What happens?:
The list of available tag suggestions does not appear when clicking back in there to add

What should have happened instead?:
When the user clicks under the existing tags or types and then clicks/presses space, the full list of available tag suggestions should appear immediately, without requiring additional typing.

Other information (browser name/version, screenshots, etc.):

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Derived Requirement

When editing an existing wish in Special\:WishlistIntake, the Tags field must always show the full list of available tag suggestions when the user clicks under existing tags or re-focuses the field. Typing should filter the suggestions, but simply clicking or pressing space should also trigger the full list to display.

Test Steps

Test Case 1: Click Under Existing Tags Without Typing

1. Go to Special:WishlistIntake.
2. Edit an existing wish with tags already assigned.
3. In the Tags field, click under the existing tags without typing.
4. ✅❓❌⬜ AC1: Confirm that the full list of available tag suggestions appears immediately.

Test Case 2: Typing and Selecting a Tag, Then Clicking Back

1. In the Tags field, type part of a tag name (e.g., "Cat").
2. Select a suggestion (e.g., "Categories") and press Enter.
3. Click back in the Tags field.
4. ✅❓❌⬜ AC2: Confirm that the full list of available tag suggestions appears, not just the last selected option.

Test Case 3: Filtered Suggestions on Typing

1. Start typing a tag name (e.g., "Cat").
2. ✅❓❌⬜ AC3: Confirm that the suggestions list filters correctly while typing.

Test Case 4: Adding Multiple Tags Sequentially

1. Add a first tag successfully.
2. Click under it in the Tags field to add another.
3. ✅❓❌⬜ AC4: Confirm that the full list of available tag suggestions appears each time you try to add another tag.

QA Results - Meta Beta