[rtags] Allow to 'derive' rtags
Since some releases, rtags (structure underlying uicfg) have selector and may be
copied using something like:
new_rtags = deepcopy(original_rtags)
new_rtags.__module__ = __name__
new_rtags.__select__ = custom_selector
The problem is that starting from that, both rtags wil diverge and changes in
original_rtags won't be considered, while we usually want to set a few specific
rules only in new_rtags. To fix this problem, this cset introduces the notion of
"derivated/parent" rtag, eg:
new_rtags = original_rtags.derive(__name__, custom_selector)
Beside easier copying, when using the above method changes in original_rtags
which are not overriden by new_rtags will be considered since it only hold its
specific rules but look among its parent chain for non-found keys.
Along the way, flake8 unittest_rtags.
Closes #16164880
Any authenticated user can defines its own bookmarks in the application. They
are similar to bookmarks in a browser but are dedicated to link into the
application and they are stored in the database (and so you'll get them from any
browser you use to connect to the application. They are available through the
bookmarks box, on the left of the screen.
To add a bookmark on the page you're seeing, simply click on the "bookmark this
page" link in the "manage bookmarks" dropdown-menu. You'll then be asked to give
it a title. Once created, it will appear in the bookmarks box.
In this dropdown-menu, the "pick existing bookmarks" link will show you a list
of bookmarks already defined by the other users of the application. If you are
interested by one of them, simply click the `[+]` sign to the left of it to add it
to your bookmarks.
The "edit bookmarks" link will show you a form to edit your current bookmarks,
for instance to change their title. If you are using share bookmarks (picked
from another user), those bookmarks won't appear in the form unless you're
allowed to modify them.
To remove a bookmark, simply click the `[-]` sign to the left of it.