• Log in as a teacher, go into a course
• Turn on editing mode
• in settings block go to users ->enrolled users
  (- or in navigation block go to participants)
• click on a user
  -> there are no blocks, no settings block and no navigation block. They should be there at least because these blocks are sticky for the whole page; set to display on any page on the front page and prevented from being deleted. We are in course context, so there should be all the blocks of the course
• on that page (user/view.php) click on 'full profil' and the blocks are there. Now we are in site context

WORKAROUND
I tried to set the pagelayout at a different place in user/view.php to 'standard' once again and now it works
diff --git a/user/view.php b/user/view.php
index 68d36ac..6aad71c 100644
— a/user/view.php
+++ b/user/view.php
@@ -106,7 +106,7 @@ if ($currentuser) {
// somebody else
$PAGE->set_title("$strpersonalprofile: ");
$PAGE->set_heading("$strpersonalprofile: ");
-
+ $PAGE->set_pagelayout('standard'); // added for displaying the blocks
// check course level capabilities
if (!has_capability('moodle/user:viewdetails', $coursecontext) && // normal enrolled user or mnager