[imgur] [album] No date under directory

[rEnr3n]

Direct links have date. Albums have no date under directory.

$ gallery-dl --version
1.14.2-dev

$ gallery-dl -K https://i.imgur.com/EIgZjHO.jpg
Keywords for directory names:
-----------------------------
date
  2018-04-01 06:31:22

Keywords for filenames and --filter:
------------------------------------
date
  2018-04-01 06:31:22

$ gallery-dl -K https://imgur.com/a/QyA6M
Keywords for directory names:
-----------------------------
album[date]
  2018-04-01 06:30:40

Keywords for filenames and --filter:
------------------------------------
album[date]
  2018-04-01 06:30:40
date
  2018-04-01 06:59:26