test: Don't disable preload for nonexisting packages
test: Don't disable preload for nonexisting packages

Fixes #14133
Closes #14943

garrett/cockpit,martinpitt/cockpit,deryni/cockpit,deryni/cockpit,garrett/cockpit,martinpitt/cockpit,cockpit-project/cockpit,garrett/cockpit,mvollmer/cockpit,mvollmer/cockpit,cockpit-project/cockpit,mvollmer/cockpit,martinpitt/cockpit,mvollmer/cockpit,deryni/cockpit,deryni/cockpit,cockpit-project/cockpit,garrett/cockpit,deryni/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,deryni/cockpit,garrett/cockpit,deryni/cockpit,mvollmer/cockpit,martinpitt/cockpit,martinpitt/cockpit