Difference in a test behavior on Windows and Linux

[Kaganski Mike]

In commit b37b299d5228beeecb913980780f463756c5a878 [1] I have tested a 
hung sc_stylefamilyobj problem on Windows, that was caused by a bug in 
IndexedStyleSheets::FindPositionsByNameAndPredicate fixed later in 
commit 362082b57b2d6e9119acb3fb033aefcbce8cf8bb [2]. It was introduced 
in 2014 [3], and apparently is not platform-specific.

Since gerrit_linux_clang_dbgutil builds the subsequentcheck tests, the 
problem should have been caught there, when 
https://gerrit.libreoffice.org/69029 was tested, and later, after its 
merge. However, it was passing fine, which shows some serious difference 
in obviously *platform-independent* behavior on Linux and Windows. 
Identically initialized document with identical stylesheet list, iiuc, 
should fail identically when executing the same faulty code, shouldn't 
it? What am I missing?

[1] 
https://git.libreoffice.org/core/+/b37b299d5228beeecb913980780f463756c5a878
[2] 
https://git.libreoffice.org/core/+/362082b57b2d6e9119acb3fb033aefcbce8cf8bb
[3] 
https://git.libreoffice.org/core/+/0c17ccc493d0c7a80f37600dae76a09a119bef78