fix bug renderFooter

[himStone]

First of all, thanks for your contribution! :-)

Please makes sure these boxes are checked before submitting your PR, thank you!

• Make sure you follow antd's code convention.
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This change is 

[mention-bot]

@bccsafe, thanks for your PR! By analyzing the history of the files in this pull request, we identified @yiminghe, @silentcloud and @warmhug to be potential reviewers.

[codecov]

Codecov Report

Merging #1294 into master will not change coverage.
The diff coverage is 0%.

@@           Coverage Diff           @@
##           master    #1294   +/-   ##
=======================================
  Coverage   61.82%   61.82%           
=======================================
  Files         219      219           
  Lines        4155     4155           
  Branches     1222     1222           
=======================================
  Hits         2569     2569           
  Misses       1585     1585           
  Partials        1        1

Flag	Coverage Δ
#rn	63.12% <0%> (ø)	⬆️
#web	60.5% <ø> (ø)	⬆️

Impacted Files	Coverage Δ
components/list/index.tsx	84.37% <0%> (ø)	⬆️

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