Fixes [YOCTO #5521]
I created a brief note in the do_fetch subsection of the
"Taking a Closer Look" section to deal with how the build
system uses checksums during do_fetch to re-execute stuff
if a file:// listed in the SRC_URI has had its contents
modified.
(From yocto-docs rev: 7b857635f2663af7c1d5e8aa87239472a5b47919)
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>