hfst-proc chops off parts of unknown words which contain spa

$ cat > test.lexc
Multichar_Symbols

%<prn%>

LEXICON Root

al% žaktar%<prn%>:al% žaktar # ;

================================================================================

$ hfst-lexc test.lexc -o test.hfst
Root...1
Building lexicon...
Determinizing...
Minimizing...
Done!
568 bytes. 11 states, 10 arcs, 1 path.
Writing to file test.hfst.
Writing AT&T file: test.hfst.att
Using default output format OpenFst with tropical weight class
Reading from test.hfst.att, writing to test.hfst
Using OpenFst's tropical weights as output
Reading transducer table...

================================================================================

$ hfst-invert test.hfst | hfst-fst2fst -w -o test.hfst.ol

================================================================================

$ echo "al žaktar" | hfst-proc test.hfst.ol
^al žaktar/al žaktar<prn>$

$ echo "al žaktare" | hfst-proc test.hfst.ol
^al/*al$

================================================================================

The correct output would be either:

$ echo "al žaktare" | hfst-proc test.hfst.ol
^al/al$ ^žaktare/žaktare$

or

$ echo "al žaktare" | hfst-proc test.hfst.ol
^al žaktare/*al žaktare$

I think the former is better.