Product feature value symbol "/" does not works with "Faceted search“ module

[Klovas]

Good day,

I have a problem with filtering products by their features. In CATALOG -> PRODUCT FEATURES I cerated Feature and 3 values:

1.   .325“
2.  1/4“
3.  3/8”

Then I assigned these values to products. I use a free module by PrestaShop Faceted search“ (updated to last version).

On my web page If I chose value .325“ to search items – search works perfectly. But if I use values 1/4" or 3/8“  - search does not work.

If I change value from 1/4“ to 14“, search works fine.

https://klovas.lt/32-oregon-pjovimo-juostos

What‘s wrong to use symbol „/“ in feature value and have a working module to search for items?

Prestashop vesrion 1.7.3.0

[Klovas]

Seems like i found a kind of solution. I don’t know if it’s appropriate in all cases, but it works so far.
I changed the / character in the value. I did not type it using the keyboard, but I copied it from a document, writing the character in a different font. 1/4 changed to 1／4.

Maybe this will help someone too.