JContent does not allow import of exportable content

[cedmail]

Environment and versions used

JContent 3.2 to 3.5.0
Jahia 8.2.2.1

Steps to reproduce

Install the attached module
Create a site
Deploy the module on the site
Go into Contents
Create a folder named "tests"
Now create a biblioCateg named "My First Categ"
Go inside "My First Categ"
Click on "New biblioRub"
Add a bilblioRub (refRub: 01, rubriqueTitle: Social Science, description: Social Science)
Export this biblioRub
Create a second Categ at the same level as the first one, "My Second Categ".
Try to import the export biblioRubri
There is no option to import content.

Current Behavior

Impossible to import content that we allow to export

Desired Behavior

If I can copy and paste content, I should be able to export/import it.

[cedmail]

myFirstModule-1.0.0-SNAPSHOT.jar.gz