QGIS » QGIS Application

I'm facing a similar issue as #19761 and #20459 with a very basic example.

The project (attached) has only one layer (Spatialite, point).

To reproduce the issue :

• After the project is loaded, I use the identify tool on one point. The attribute form opens normally. I close it.
• I try to identify an other point, the attribute form opens again normally. I close it, but this time the task "Identify feature" in the task manager doesn't stopped, and I can't stopped it manually.
• After that, I can continue to use the identify tool normaly (the forms opens), but the corresponding tasks "Identify feature" are not removed from the task manager.
• I can't close QGis because of the first "permanent" "Identify feature" task. I have to kill the application with Windows task manager.

Conditions :

• OS : I reproduce this bug only on Windows (tested on 7 and 10). I have tested it on Debian and I couldn't reproduce the issue.
• Data provider : I observe the issue only with Spatialite layer. I have also tried with Shapefile and PostGIS layer : there was no issue.
• QGis version : the issue exists in 3.4.0, 3.4.1 and 3.4.2 QGis versions.

Others details :

• The bug can be reproduced whithout clicking on a point. Using the identify tool and clicking anywhere has the same result : the second click produce a "permanent" "Identify feature" task.
• If I reproduce the bug whith the layer in edit mode, when I stop the edition, the map refreshs and the points of the layer disappear (they are not shown).

Best regards.