Fixes <https://bugs.gnu.org/35731>.
* gnu/installer/newt/partition.scm (run-partioning-page)[run-page]:
Introduce 'initial-partitions' variable. Previously we'd call
'disk-partitions' after 'auto-partition' had done its job of creating
new partitions, and thus its result would contain the just-created
partitions. Consequently, 'create-special-user-partitions' would return
the ESP partition we just created, and thus it would appear twice in the
list.