ymd with Jan for month

[mwmclean]

ymd("2004-Jan-15")  # last two digits of year seem to become month
                    # and first two digits of year seem to become last two of year
## [1] "2020-04-15 UTC"  

ymd("1904-Jan-15")
## [1] "2019-04-15 UTC"

parse_date_time("1904-Jan-15", "ybd")   # good
## [1] "1904-01-15 UTC"

ymd("1904-Feb-15")  # also good
## [1] "1904-02-15 UTC"

ymd('1920-Jan-01')  # also good (note "20" would not be a valid month)
## [1] "1920-01-01 UTC"

ymd("2004-01-01")  # also good
## [1] "2004-01-01 UTC"

sessionInfo()
## R Under development (unstable) (2013-12-21 r64500)
## Platform: x86_64-w64-mingw32/x64 (64-bit)
## 
## locale:
## [1] LC_COLLATE=English_United States.1252 
## [2] LC_CTYPE=English_United States.1252   
## [3] LC_MONETARY=English_United States.1252
## [4] LC_NUMERIC=C                          
## [5] LC_TIME=English_United States.1252    
## 
## attached base packages:
## [1] stats     graphics  grDevices utils     datasets  methods   base     
## 
## other attached packages:
## [1] lubridate_1.3.3
## 
## loaded via a namespace (and not attached):
## [1] digest_0.6.4  memoise_0.1   plyr_1.8      stringr_0.6.2

[vspinu]

I have no idea why this issue occurs only with Jan but not with Feb. Fixed by tweaking the order of matching. Thanks.