bug#73599: packages from store paths don't propagate propagated-inputs

[MSavoritias]

With a package definition adding a propagated input.

Using guix build to build a package like so:

guix build --rounds=3 --no-substitutes --no-grafts --keep-failed 
--load-path=. <the package>


and then taking the store path at the end for example:

phase `compress-documentation' succeeded after 0.0 seconds
successfully built /gnu/store/vcj7bq0igj2354m5pqk9zf1x0cnwgjzd-po4a-0.73.drv
/gnu/store/j37fygmv7p69nmw0md916acinc8c8m4y-po4a-0.73


and installing it in the profile with

guix package --install /gnu/store/j37fygmv7p69nmw0md916acinc8c8m4y-po4a-0.73


will not install the propagated input into the profile. It will only 
have po4a installed.

$ guix package --install 
/gnu/store/j37fygmv7p69nmw0md916acinc8c8m4y-po4a-0.73
The following package will be installed:
   po4a 0.73

The following derivation will be built:
  /gnu/store/mc57jjaqlrmp0dw8sy2vlcv3c5giblk9-profile.drv

building CA certificate bundle...
listing Emacs sub-directories...
building fonts directory...
building directory of Info manuals...
building profile with 1 package...
$ guix package --list-installed
po4a    0.73    out /gnu/store/j37fygmv7p69nmw0md916acinc8c8m4y-po4a-0.73
$


;; This file was automatically generated and is for internal use only.
;; It cannot be passed to the '--manifest' option.
;; Run 'guix package --export-manifest' if you want to export a file
;; suitable for '--manifest'.

(manifest
  (version 4)
  (packages
    (("po4a"
      "0.73"
      "out"
      "/gnu/store/j37fygmv7p69nmw0md916acinc8c8m4y-po4a-0.73"))))