On a fresh install, both Twitter and X share links are inserted in the core_share_links table.

This happens because the file \applications\core\data\schema.json was updated in 4.7.14 to insert a new row (ID 10), but the old one (ID 0) was not removed:

        "inserts": {
            "0": {
                "share_id": 1,
                "share_title": "Twitter",
                "share_key": "twitter",
                "share_enabled": 1,
                "share_position": 1,
                "share_groups": "*"
            },
            [...]
            "10": {
                "share_id": "13",
                "share_title": "X",
                "share_key": "x",
                "share_enabled": "1",
                "share_position": "13",
                "share_canonical": "1",
                "share_groups": "*",
                "share_autoshare": "0"
            }
        },

 

Thank you for bringing this issue to our attention! I can confirm this should be further reviewed and I have logged an internal bug report for our development team to investigate and address as necessary, in a future maintenance release.

 

Looks like a fix for this bug was included in 4.7.15. Marking as solved.