Bug recognizing case of ticket type on Russian

[anonymous]

Hi. I use ticket type written on russian

On image1 you can see two ticket type I create Временная 1 and Временная 2. For type Временная 1 I set restricted child types дефект, Временная 1, Временная 2.
Then I press Временная 1 for edit and I see (Image2) - there appear 2 new types for restricted child types: временная 1, временная 2 - it looks as I created types but first letter become lower case - and those 2 become selected (I tryed to select the ones I need but those 2 is become selected again).
In trac.ini it looks correct:

[childtickets]
parent.Временная 1.allow_child_tickets = True
parent.Временная 1.inherit =
parent.Временная 1.restrict_child_type = дефект,Временная 1,Временная 2
parent.Временная 1.table_headers = summary,owner
parent.Временная 2.allow_child_tickets = True
parent.Временная 2.inherit =
parent.Временная 2.restrict_child_type = задание,Временная 2
parent.Временная 2.table_headers = summary,owner

As result I get error that type of ticket incorrect when I try to create subchild with type Временная 1 (First letter is in upper case because only such type can be selected from drop-down list). As temporary desicion I make all my ticket types are lower case and now it works.

[anonymous]

Child Tickets Plugin page in admin panel

[anonymous]

Parent Type page in admin panel