Fixes capitalized I's when emojiis are present after the text being edited. (#21951)
Fixes capitalized I's when emojiis are present after the text being edited. (#21951)

Summary:
Fixes #21243.
Fixes #20908.

Credit goes to superandrew213 who provided the patch based on 0.56; this commit merges and resolved the conflict introduced in 0.57.
Pull Request resolved: https://github.com/facebook/react-native/pull/21951

Differential Revision: D13980799

Pulled By: cpojer

fbshipit-source-id: 6b9f1a1ae54ad9dba043005d683d6a221472c729

arthuralee/react-native,pandiaraj44/react-native,hoangpham95/react-native,javache/react-native,pandiaraj44/react-native,hammerandchisel/react-native,hammerandchisel/react-native,myntra/react-native,pandiaraj44/react-native,exponentjs/react-native,janicduplessis/react-native,exponent/react-native,janicduplessis/react-native,hammerandchisel/react-native,janicduplessis/react-native,exponent/react-native,hammerandchisel/react-native,exponent/react-native,janicduplessis/react-native,hoangpham95/react-native,janicduplessis/react-native,pandiaraj44/react-native,myntra/react-native,hoangpham95/react-native,pandiaraj44/react-native,pandiaraj44/react-native,hoangpham95/react-native,exponent/react-native,arthuralee/react-native,facebook/react-native,hoangpham95/react-native,javache/react-native,myntra/react-native,janicduplessis/react-native,facebook/react-native,exponent/react-native,exponent/react-native,myntra/react-native,hammerandchisel/react-native,hoangpham95/react-native,javache/react-native,exponentjs/react-native,pandiaraj44/react-native,exponentjs/react-native,myntra/react-native,facebook/react-native,janicduplessis/react-native,facebook/react-native,exponentjs/react-native,hoangpham95/react-native,hammerandchisel/react-native,pandiaraj44/react-native,javache/react-native,myntra/react-native,hammerandchisel/react-native,facebook/react-native,hoangpham95/react-native,facebook/react-native,javache/react-native,facebook/react-native,exponentjs/react-native,myntra/react-native,facebook/react-native,arthuralee/react-native,arthuralee/react-native,myntra/react-native,myntra/react-native,javache/react-native,javache/react-native,hammerandchisel/react-native,exponent/react-native,exponentjs/react-native,exponentjs/react-native,janicduplessis/react-native,arthuralee/react-native,javache/react-native,facebook/react-native,exponentjs/react-native,javache/react-native,exponent/react-native