2.99 ScriptFu scripts call PDB procedures using v2 API for filenames
Symptom: fail with error like: "wrong type for argument 4 to file-gbr-save, expected vector."
GIMP 2 API required two strings (in Scheme.) GIMP 3 API requires one string (after MR !437 (merged) for #5402 (closed))
The error is at the calling site in .scm scripts.
In the GIMP repository, there are 7 instances in 6 files. For example, in /plug-ins/script-fu/paste-as-pattern.scm .
The fix is probably to delete the second string, which in most cases is an empty string "". An exception is contactsheet.scm, which has a non-empty second string.