[gatsby-source-filesystem] don't process same remote file multiple times#3859

Merged

KyleAMathews merged 1 commit intogatsbyjs:masterfrom

pieh:fs_same_remote_file

Feb 6, 2018

Commits on Feb 4, 2018

[gatsby-source-filesystem] don't try to process same remote file multiple times, cache promises and return them on subsequent calls
pieh
committed