Footnote numbers are duplicated in Trac 1.0.1 ticket preview

[Chris Nelson]

If you put one or more footnotes ([[FootNote(some text)]]) and the macro invocation to *display* the footnotes ([[FootNote()]]) in a ticket comment, while you work, the footnotes show up in the preview as

----
1. 1. some text

but once you've submitted it, it shows up as

----
1. some text

so, the macro has some weird interaction with the new preview feature. For all I know, if you clicked <<Preview>> in 0.11 it did the same thing.

[Ryan J Ollos]

The issue is due to the same mechanism that causes an ugly rendering of a #!diff, the first time that a diff is added to the page and prior to an explicit Preview. It is discussed in ​trac:#10470.

The footnotes.css stylesheet has a rule list-style: none, but there is no mechanism to add footnotes.css to the page during autopreview. The stylesheet is added to the Request on macro invocation, but the stylesheet doesn't get added to the page. The stylesheet is added to the page during an explicit Preview, so this is a Trac >= 1.0 issue only.

One inelegant workaround is:

footnotemacro/macro.py

@@ -117 +117 @@
                                 class_='sigil',
                             ),
                             ' ',
-                            markup,
+                            markup, style='list-style: none;',
                             id='FootNote%s' % (i+1),
                         ) for i, (content, markup) in enumerate(footnotes)
                                                    if markup],