Inline anchors turn to regular link on subsequent edits with the span rendered

[zerolab]

Scenario:

1. Select a bit of text in a paragraph and add an anchor. The editor shows the correct icon.
2. Save and view the page. The selected text is wrapped correctly in a span
3. Go to edit the page. The selected text is now a regular Wagtail link and will render as such after save

[jams2]

@zerolab I am unable to reproduce this on Wagtail 3.0 (no particular reason for that version, it was installed in my test project) or 4.2. Does your project have custom link handlers or other custom rich text processing? Perhaps there is a conflict.

[zerolab]

No custom link handlers or rich text processing. Will dig more

[dest81]

@zerolab I can reproduce bug. If I use custom list of features and put anchor-identifier after link:

WAGTAILADMIN_RICH_TEXT_EDITORS = {
    "default": {
        "WIDGET": "wagtail.admin.rich_text.DraftailRichTextArea",
        "OPTIONS": {
            "features": [
                "bold",
                .......
                "link",
                "document-link",
                "anchor-identifier",
                ....
            ]
        },
    }
}

if anchor-identifier is placed before link works as expected.
In default config it works well because anchor-identifier feature is inserted as first element of the list:

@hooks.register("register_rich_text_features")
def register_rich_text_anchor_identifier_feature(features):
    features.default_features.insert(0, "anchor-identifier")

[zerolab]

ooh, nice catch @dest81
can confirm our features definition had "anchor-identifier" after "link".

Perhaps this is a documentation issue then?