Investigate more elegant solution to double call to drupal_flush_all_caches()

Problem/Motivation

In #3124958: Visiting admin/reports/status after running drush ipg causes fatal error, it was found that the site was left in a strange state after generating an install profile.

The root cause of this issue was ModuleExtensionList::getAllInstalledInfo() not listing the new install profile, even after a cache clear. This is possibly due to the module handler being in a strange state.

Testing found that running drupal_flush_all_caches() twice fixes this issue, but is somewhat inelegant and heavy handed. This issue is to investigate a better fix.

Proposed resolution

TBD

Remaining tasks

TBD

User interface changes

None

API changes

None

Data model changes

None

Release notes snippet

TBD