Order by and minus in char fields

Question

I have a test query that i have ordered by the expected result order.
select t from (
select cast('1' as nvarchar(20)) as t
union all select '1---qa'
union all select '1q'
union all select '1q1'
union all select '1qz'
union all select 'a'
union all select 'A'
union all select 'č'
union all select 'Č'
union all select 'g'
union all select 'G'
union all select 'ž'
union all select 'Ž'
) q
order by t --collate latin1_general_bin
and the question is... why is minus character (at 3rd line in '1---qa' string) ignored by "order by" clause? That row is put after '1q1' and not after '1'.
When you replace '-' with '+' or any other special char it works as expected but not with '-'. It is just ignored no matter if there is one or more of them.
Don't mind local chars like čž, they are for testing purposes with collate (thus commented) and with bin collation that is not doing proper sorting but minus order is ok in that case.
Tested on SQL 2008 R2 and SQL express 2012, database collation is 'Croatian_CI_AS'.
Is it a bug?

Answer 1

Interestingly this puts it right after 1 in sequence
select t from (
select cast('1' as varchar(20)) as t
union all select '1---qa'
union all select '1q'
union all select '1q1'
union all select '1qz'
union all select 'a'
union all select 'A'
union all select 'č'
union all select 'Č'
union all select 'g'
union all select 'G'
union all select 'ž'
union all select 'Ž'
) q
order by t
in my SQL 2014 instance
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