Misspellings in all uppercase get unexpected suggestions

[snomos]

Example (none of the suggestions are reasonable corrections):

Here is the same input with initial cap (second and third suggestions are reasonable corrections):

And the same input with all lowercase (all suggestions are reasonable corrections):

It might be that this can all be corrected in the fst by giving higher weights to certain types of compounds. As for now, one of the uppercase only suggestions is analysed as follows:

$ echo Kant-RV-irgi | hfst-lookup -q build/newspellers/tools/spellcheckers/fstbased/analyser-fstspeller-gt-norm.hfst 
Kant-RV-irgi    Kant+N+Prop+Sem/Sur+Cmp-#RV+N+ACR+Cmp-#irgi+N+Sg+Nom    17,031221
Kant-RV-irgi    Kant+N+Prop+Sem/Sur+Cmp-#RV+N+ACR+Cmp-#irgi+N+Sg+Nom    10017,031250

Giving higher weight to +ACR tags should help improve the suggestions. I'll try this first.

[snomos]

Adding more weight did not really change anything. Is there anything that can be done to the case handling algorithm to improve suggestions in these cases?

[snomos]

Given suggestion vs expected suggestion:

$ echo Kant-RV-irgi | hfst-lookup -q fstbased/analyser-fstspeller-gt-norm.hfst 
Kant-RV-irgi    Kant+N+Prop+Sem/Sur+Cmp-#RV+N+ACR+Cmp-#irgi+N+Sg+Nom    517,031250
Kant-RV-irgi    Kant+N+Prop+Sem/Sur+Cmp-#RV+N+ACR+Cmp-#irgi+N+Sg+Nom    10517,031250

$ echo kánturvirgi | hfst-lookup -q fstbased/analyser-fstspeller-gt-norm.hfst 
kánturvirgi    kantuvra+N+Cmp#virgi+N+Sg+Nom   15,031221

Note the weight differences.

[TinoDidriksen]

Fixed in hfst-ospell r4554. It actually worked as expected if you just asked for suggestions right away, but the caching of non-suggestion lookups broke it.