[derek73]

Closes #848.

What changes. Ing, the engineering degree of Czech, Slovak, Austrian and Romanian names, is now a credential marked ambiguous, as PA is (#797). Before this, the comma read the unlisted word as the given name.

Input	2.5.0	now
Viera Sevcikova, Ing	given Ing, family Viera Sevcikova	given Viera, family Sevcikova, suffix Ing
John Ing	family Ing	family Ing (fork reported)
HO, ING	given ING, family HO	same (fork reported)
Filip Polák, Ing.	title Ing.	suffix Ing.
Martin Hulin, Ing., Mgr., PhD.	title Ing. Mgr., suffix PhD.	title Mgr., suffix Ing., PhD.

Why ambiguous, not plain. Ing is a surname (US Census 1,814, over the 200-bearer threshold) and a Swedish given name. It stays out of the titles (#840), since a title would claim Ing Smith.

Accepted costs.

• After a full name and a comma, the dotted Ing. moves from title to suffix with the bare form, while Mgr., MUDr., Bc. and Dipl.-Ing. stay titles. Czech writes all of them before the name, so a comma-separated list holding two of them is split across fields. Given and family stay right in every such name. Keeping Ing. a title would take a new rule for one word. Written in Title case, after a one-word or empty head (Novak, Ing., , Ing.) or with no comma between it and another title (Jan Novak, Ing. Mgr.), it stays a title and now reports the fork. Written in capitals in a mixed-case name, ING. leans to the credential as MA. and PA. do, so Novak, ING. gives suffix ING..
• The dotted initials I.N.G. read as the credential with no report, as M.A. already does, so a name spelled in them is lost where they stand last: Smith, I.N.G. loses its given name, John I.N.G. its family name, and John Smith nee I.N.G. its maiden name. The M.A. twins of each read that way on master.

Out of scope. Jana Bartáková, Ing et PhD (a connective inside the credential run) and Jiří Cihlář, Prof Ing (a credential behind a title) read as before.

Case. A cased = "Ing" mask makes capitalized() write Ing, not ING. That is also the surname's own title case, so capitalized() recases no word differently (a word moved between fields still moves the rendering's order). capitalized(force=True) now writes a capitals credential as Ing too (John Smith, ING → John Smith Ing, where it kept ING).

Measured (2026-10-23, against 332f24a, local corpora recorded from the base tree first):

• ctgov-officials: 22 of 352,104 readings move. 7 names stop reversing, 10 dotted names move Ing. from title to suffix with given and family unchanged, and 5 only gain the suffix-or-name report (Jeffrey J Ing, MD keeps family Ing).
• fec-individuals 1, psc-individuals 13, tse-donors 0, each only gaining the report.
• The committed corpora hold no Ing after a comma, so snapshot.jsonl does not move.

Decisions: decisions/suffix-acronym-collisions (Standing bullet and a 2026-10-23 log entry). decisions/salutation-titles drops its open pointer to #848. Release log: folded into the #797 bullet.

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.05%. Comparing base (332f24a) to head (759cd18).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #858   +/-   ##
=======================================
  Coverage   99.05%   99.05%           
=======================================
  Files          47       47           
  Lines        4669     4669           
=======================================
  Hits         4625     4625           
  Misses         44       44           

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