[SOLVED] Wrong list of parent activities

Minor issue as this is happening in a very specific use case:
I have seen the worng list of activities displayed in "parent activity" combobox, on creation of a new Activity.

1/ User "Tim" is affected to just one project "P1".
2/ Log in as "Tim", project selector = 'All Projects'
3/ Create new activity A1 in project P1 => OK.
4/ Create new activity A1-1 : default project is correctly listed as "P1" since it is the project to which Tim is affected.
5/ Open the combobox for "parent activity" to set A1-1 as child of A1: the list of parent activities displayed is incorrect: it contains the activities of Project ID#1 it seems.

Extra notes:
- this is only reproduced when project selector = 'All projects'
- this is only reproduced at first loading of the new activity:
if you select a different project for the new activity, and then select again the default project P1, then the list of activities is OK.

I wanted to, but failed
I think it's really linked to a user being affected to just one project - so I don't think I can reproduce it with one of the default users available.

If you create a new user and affect him to one project only, perhaps you can see the issue. If not, then maybe indeed it is not reproducible

Actually, maybe an easier way: i've made a dump of my initialized test DB.
You can log in as pl2 / a to reproduce the issue, normally.