unexplained "warning - incompatible stripping characters and condition"

[helix84]

poedit, openoffice2 throw following warning multiple times when started from command line on Slovak files:

warning: incompatible stripping characters and condition:
SFX

After googling I discovered also Firefox and other packages have this problem, figured it has to do something with spellchecking, so I tracked dependencies of poedit and found the message in hunspell-1.2.6 source (poedit -> libgtkspell0 -> libenchant1c2a -> libhunspell-1.2-0).

grep revels the message in following places:
enchant-1.4.2/src/myspell/affixmgr.cxx: HUNSPELL_WARNING(stderr, "warning: incompatible stripping characters and condition:\n%s\n", warnvar);
hunspell-1.2.6/NEWS:warning - incompatible stripping characters and condition:
hunspell-1.2.6/src/hunspell/affixmgr.cxx: HUNSPELL_WARNING(stderr, "warning: incompatible stripping characters and condition:\n%s\n", warnvar);

The problem is I don't know what to do with this warning, it's not descriptive enough. hunspell-1.2.6/NEWS mentions errors in dictionaries but I have no idea what to fix. More info please?

Related bugs: #172974, #172974

[Kamil Páral (kamil.paral)]

Same problem for poedit and Czech language.

[Kubuman (kubuguy)]

Same thing with Kubuntu and Pidgin. Slovak language.

"
warning: incompatible stripping characters and condition:
SFX

[...]

warning: incompatible stripping characters and condition:
SFX
Segmentation fault
"