timing.holiday.pl/holiday? throws on few specific dates

[roterski]

Hey 👋

First of all, thanks for the library, it has few neat ideas, especially around holidays.

Unfortunately, when I was playing with it, I have run into this error:

(ns timing-bug-repro
  (:require [timing.core :as tc]
            [timing.holiday.pl :as pl]))

(comment
  ;; actual holiday
  (->> (tc/date 2025 11 11)
       (tc/date->value)
       (tc/day-context)
       (pl/holiday?))
  ;;=> {:name #function[clojure.core/partial/fn--5927]}


  ;; no holiday
  (->> (tc/date 2025 11 19)
       (tc/date->value)
       (tc/day-context)
       (pl/holiday?))
  ;;=> nil

  ;; this date throws an exception
  (->> (tc/date 2025 11 20)
       (tc/date->value)
       (tc/day-context)
       (pl/holiday?))
  ;;=> Execution error (ExceptionInfo) at timing.holiday.compiler/compile-before-after$fn (compiler.cljc:278).
  ;;   Unknown definition
;; timing.holiday.compiler/compile-before-after (compiler.cljc:278)
;; timing.holiday.pl/holiday? (pl.cljc:167)
;; clojure.core/some (core.clj:2718)
;; timing.holiday.pl/holiday? (pl.cljc:165)
;; timing-bug-repro/eval73074 (timing_bug_repro.cljc:25)
  )

Nothing special about this date, but I've noticed that it happens for 52 days in this year, but only in the Polish holiday calendar.
I have tested gb and us throughout the whole year and they didn't fail.

other dates throwing this error

2025-01-02
2025-01-09
2025-01-16
2025-01-23
2025-01-30
2025-02-06
2025-02-13
2025-02-20
2025-02-27
2025-03-06
2025-03-13
2025-03-20
2025-03-27
2025-04-03
2025-04-10
2025-04-17
2025-04-24
2025-05-01
2025-05-08
2025-05-15
2025-05-22
2025-05-29
2025-06-05
2025-06-12
2025-06-19
2025-06-26
2025-07-03
2025-07-10
2025-07-17
2025-07-24
2025-07-31
2025-08-07
2025-08-14
2025-08-21
2025-08-28
2025-09-04
2025-09-11
2025-09-18
2025-09-25
2025-10-02
2025-10-09
2025-10-16
2025-10-23
2025-10-30
2025-11-06
2025-11-13
2025-11-20
2025-11-27
2025-12-04
2025-12-11
2025-12-18
2025-12-25