CppunitTest_sw_ooxmlexport4 failing with --disable-pch on Windows

[Mike Kaganski]

Hi!

In current master (at least a week, and still the same after pull just
now) I see 100% reproducible failure of make CppunitTest_sw_ooxmlexport4:

> $ /opt/lo/bin/make CppunitTest_sw_ooxmlexport4
> ...
> test_Tdf115030::Load_Reload_Verify finished in: 1500ms
> C:/lo/src/core/test/source/xmltesttools.cxx(194) : error : Assertion
> Test name: testComboBoxControl::Load_Reload_Verify
> equality assertion failed
> - Expected: manolo
> - Actual  : Manolo
> - In <file:///C:/cygwin64/tmp/lu23416a8g0y3.tmp>, XPath contents of child does not match
> 
> Failures !!!
> Run: 85   Failure total: 1   Failures: 1   Errors: 0

This test succeeds normally though, when run individually:

> $ /opt/lo/bin/make CppunitTest_sw_ooxmlexport4 CPPUNIT_TEST_NAME=testComboBoxControl

I was able to narrow down the problem to --disable-pch in my config.
Specifically, the problem is reproduced with the normal PCH build, after
just adding the '--disable-pch' option to autogen.sh, executing 'touch
sw/qa/extras/ooxmlexport/ooxmlexport4.cxx', and then 'make
CppunitTest_sw_ooxmlexport4' - so rebuilding the single CXX reliably
produces the failure.

My full autogen.sh:

> --with-distro=LibreOfficeWin64
> --with-external-tar=c:/lo/src/lo-externalsrc
> --with-junit=c:/lo/src/junit-4.10.jar
> --with-ant-home=c:/lo/src/apache-ant-1.9.5
> --with-jdk-home=C:/Program Files/AdoptOpenJDK/jdk-11.0.7.10-hotspot
> --with-galleries=no
> --with-parallelism=14
> --with-visual-studio=2019
> --disable-pch
> --enable-dbgutil
> --without-help
> --with-lang=ru de gd kab om rw si he
> --with-myspell-dicts
> --without-package-format
> --without-helppack-integration
> --enable-64-bit
> --enable-werror
> --with-ucrt-dir=D:/Downloads/ucrt/WindowsUCRT
> --enable-breakpad
> --disable-mergelibs
> --enable-qt5
> --disable-odk

using Windows 10 64-bit v.1909 build 18363.900, with gpg4win 3.1.11
installed.

Could you please perform a quick test like the described, to check if
that is reproducible universally, or some problem with my system? Thank you!

-- 
Best regards,
Mike Kaganski
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