Fix to_char() behaviour with 'WW-D' pattern

When Who What
2020-07-10 20:11:09 Tom Lane (tgl) Closed in commitfest 2020-07 with status: Returned with feedback
2020-04-08 15:21:18 David Steele (dsteele) Closed in commitfest 2020-03 with status: Moved to next CF
2020-03-13 10:35:31 Nitin Jadhav (nitinjadhav11) Added nitinjadhav11 as reviewer
2020-03-05 07:20:11 Nitin Jadhav (nitinjadhav) Removed nitinjadhav from reviewers
2020-03-05 07:20:03 Nitin Jadhav (nitinjadhav) Added nitinjadhav as reviewer
2020-02-01 12:41:44 Tomas Vondra (fuzzycz) Closed in commitfest 2020-01 with status: Moved to next CF
2020-01-31 22:53:04 Cleysson Lima (cleyssonlima) Added cleyssonlima as reviewer
2020-01-13 16:23:20 Sulidi Maimaitiming (smaimaitiming) Removed smaimaitiming from reviewers
2020-01-13 16:23:00 Sulidi Maimaitiming (smaimaitiming) Added smaimaitiming as reviewer
2019-12-24 12:59:09 Mark Lorenz (s-man42) Added annotation "Attention: Two patches in one thread! Patch for https://commitfest.postgresql.org/26/2389/ is "chg_to_date_yyyywwd.patch" " to f4e740a8de3ad1e762a28f6ff253ea4f@four-two.de
2019-12-24 12:57:59 Mark Lorenz (s-man42) Added annotation "Attention: Two patches in one thread! Bugfix patch for https://commitfest.postgresql.org/26/2388/ is "fix_to_char_yyyywwd.patch"" to f4e740a8de3ad1e762a28f6ff253ea4f@four-two.de
2019-12-24 12:55:17 Mark Lorenz (s-man42) Deleted annotation "Fix patch is "fix_to_char_yyyywwd.patch"" from f4e740a8de3ad1e762a28f6ff253ea4f@four-two.de
2019-12-24 12:52:10 Mark Lorenz (s-man42) Added annotation "Fix patch is "fix_to_char_yyyywwd.patch"" to f4e740a8de3ad1e762a28f6ff253ea4f@four-two.de
2019-12-24 12:51:20 Mark Lorenz (s-man42) Deleted annotation "Fix patch is attachment "fix_to_char_yyyywwd.path"" from f4e740a8de3ad1e762a28f6ff253ea4f@four-two.de
2019-12-24 12:51:09 Mark Lorenz (s-man42) Added annotation "Fix patch is attachment "fix_to_char_yyyywwd.path"" to f4e740a8de3ad1e762a28f6ff253ea4f@four-two.de
2019-12-24 12:48:28 Mark Lorenz (s-man42) Changed authors to Mark Lorenz (s-man42)
2019-12-24 12:47:21 Mark Lorenz (s-man42) Attached mail thread c2a5dc4bd855db7b58303031e46c5b9e@four-two.de
2019-12-24 12:47:21 Mark Lorenz (s-man42) Created patch record