[yocto] When are file checksums gathered from files, for tasks? During recipe parsing?

[Paul Knopf]

I have a recipe that depends on a deployed output from an image.

----------------------------------------------------------
SRC_URI +=
"file://${DEPLOY_DIR_IMAGE}/my-image-${MACHINE}.wic.update.tar.gz;subdir=update"
do_fetch[depends] += "my-image:do_build"
----------------------------------------------------------

Will the hash for "do_fetch" be computed after "my-image:do_build" is
executed?

If not, how would you propose I do something like this?
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