Collapsible sections are those created by starting a title with "+" or "-". Some of these sections cannot be expanded or collapsed due to a conflict with other collapsible sections shown at the same time but parsed in different contexts.
When such a conflict happens, the div elements of the conflicting sections have identical id attributes (which means the HTML is invalid). Browsers deal with such conflicts by considering that the real element with the duplicate id is the first one. Consequently, when that happens, trying to open/close any of the conflicting sections will open/close the first conflicting section.
It would be difficult to explain exactly when this occurs or not, but this is very simple to reproduce. Suffice to call the FADE plugin twice and to have at least 1 collapsible section in each call's body. Trying to open or close the first section of the second call to FADE will fail.
The identifiers of the section are generated in parse_data_process_maketoc(). The $nb_hdrs variable holds a count of collapsible sections which attempts to avoid such conflicts, but as this is a local variable, when parse_data_process_maketoc() is called several times, conflicts can occur between different contexts. As FADE calls parse_data() to parse its body, a page's immediate content and its content inside a FADE zone are parsed in different contexts.
This affects trunk as of r69061.
This is demonstrated on this show.tikiwiki.org page.
To help developers solve the bug, we kindly request that you demonstrate your bug on a show2.tiki.org instance. To start, simply select a version and click on "Create show2.tiki.org instance". Once the instance is ready (in a minute or two), as indicated in the status window below, you can then access that instance, login (the initial admin username/password is "admin") and configure the Tiki to demonstrate your bug. Priority will be given to bugs that have been demonstrated on show2.tiki.org.
The URL for the show.tikiwiki.org instance that demonstrates this bug is at: http://chealer-232-7031.show.tikiwiki.org. Note that if you get a popup asking for a username/password, please just enter "show" and "show". This is different from the initial login and password for a new Tiki which is "admin" and "admin".
For the install log, see http://chealer-232-7031.show.tikiwiki.org/info.txt
Note that if you see PHP errors or a Tiki claiming to be missing third party software, the instance creation is probably not finished. Please wait a couple minutes and reload.
Snapshots are database dumps of the configuration that developers can download for debugging. Once you have reproduced your bug on the show.tikiwiki.org instance, create a snapshot that can then be downloaded by developers for further investigation.
Snapshots can be accessed at: http://chealer-232-7031.show.tikiwiki.org/snapshots/. Note that if you get a popup asking for a username/password, please just enter "show" and "show".
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