fix(DatetimePicker): should update value when range changed

[chenjiahan]

#4668

[codecov-io]

Codecov Report

Merging #4676 into dev will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##              dev    #4676      +/-   ##
==========================================
+ Coverage   94.54%   94.54%   +<.01%     
==========================================
  Files         134      134              
  Lines        3023     3025       +2     
  Branches      270      270              
==========================================
+ Hits         2858     2860       +2     
  Misses        133      133              
  Partials       32       32

Impacted Files	Coverage Δ
src/datetime-picker/DatePicker.js	98.5% <100%> (+0.04%)	⬆️
src/datetime-picker/TimePicker.js	100% <100%> (ø)	⬆️
src/datetime-picker/shared.js	100% <100%> (ø)	⬆️

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