5.7.0 crash when tagging

[digikam at 911networks.com]

DK 5.7.0 app on manjaro.

Short:
DK crashes when I tag with the following keyword:

@work

Long:

* I started fresh. 
* Imported 11,000 images most of them with the XMP files. 
* One of the existing keyword is @work and it imported properly
* Find other photos that also need that keyword
* Selected all of them (ctrl-a)
* on the right panel: filter, selected the tag: @work
* drag and drop
* apply to all items
* crash/close DK

The same thing happens when I just select 1 image.

This only happens with "@work" (w/o the quotes).

* Is it the @ during the drag and drop?
* The "@work" is OK when importing from the XMP

Any suggestion on how to bypass that? I'd like to keep the "@work"
tag. "at work" doesn't look as good.

-- 
sknahT

vyS