easily remove all tags from an image

[leoutation at gmx.fr]

Hi
Conditions:
Digikam 8.1 git version
XMP tags, read from sidecars, write from sidecars, write to sidecar only
It happened strange thing: in one click, i assigned hundred tags at
least  to one image. I don't know what happened, how i could do that,
it's an error.
Now, i want to remove *all tags* from this image but it'll take a lot of
time if i remove tags individually. I'm wandering if it exists a command
somewhere to do that

--
Maderios