Unexpected "Duplicated translation" error

Hi,
While working on Arabic translations for the uBlock project, I noticed an unexpected behavior with some strings.
When I try to edit an existing translation and save it, I get a “Duplicated translation” error — even though the new translation is different from the existing one. The original translation disappears from view, and the string appears under “Unsaved translations” with no way to save it directly.
The workaround I found is: delete my suggestion → approve the existing translation from the interface → rewrite it. This is time-consuming and unclear.
This seems to happen specifically with strings containing “filter/filtering” terminology.
Example string for reference:

Is this a known behavior or a bug? Any clarification would help.
Thank you

Hi @fateh-bouyahiaoui
The “Duplicate translations” error indicates that the same suggestion has already been submitted and is currently present in the TM and MT suggestions lists. You are welcome to review the string suggestions by scrolling, and select the needed entry as translation