[Digikam-devel] [Bug 303994] Many face tag comboboxes and may tags, will have an impact on performance [patch]

[Marcel Wiesweg]

https://bugs.kde.org/show_bug.cgi?id=303994

--- Comment #6 from Marcel Wiesweg <marcel.wiesweg at gmx.de> ---
I believe this is the problem: We have 1 set of models and n completion
objects. When creating each new widget, the two filter models change their
source model, which resets the model, even if there is no actual change and the
source model is already set. As we share the model, adding widget x will resync
all 1..x completion objects, which means we will resync n + (n-1) + (n-2) + ...
times.
Please check if my fix solves the problem.

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