fix(install): skip MarkAliasInstalled when alias was already present

Composer's `Transaction::calculateOperations` only emits a
MarkAliasInstalledOperation when the alias isn't already in
`presentAliasMap`. Mirror that here: walk installed.json for each
package being installed/updated, recover its prior alias set (explicit
`extra.branch-alias` entries plus the synthetic `9999999-dev` alias for
`default-branch: true` dev packages), and suppress the trace line when
the new lock's alias normalized version was already there. Avoids the
spurious "Marking ... as installed" emitted on a same-alias dev ref bump.

1 files changed, 3 insertions, 3 deletions

diff --git a/crates/mozart/tests/installer.rs b/crates/mozart/tests/installer.rs
index 6213a6c..7767f55 100644
--- a/crates/mozart/tests/installer.rs
+++ b/crates/mozart/tests/installer.rs
@@ -352,7 +352,7 @@ installer_fixture!(unbounded_conflict_does_not_match_default_branch_with_numeric
 installer_fixture!(unbounded_conflict_matches_default_branch);
 installer_fixture!(update_abandoned_package_required_but_blocked_via_audit_config);
 installer_fixture!(update_alias);
-installer_fixture!(update_alias_lock, ignore);
+installer_fixture!(update_alias_lock);
 installer_fixture!(update_alias_lock2);
 installer_fixture!(update_all);
 installer_fixture!(update_all_dry_run);
@@ -380,8 +380,8 @@ installer_fixture!(
 installer_fixture!(update_allow_list_with_dependency_conflict);
 installer_fixture!(update_changes_url, ignore);
 installer_fixture!(update_dev_ignores_providers);
-installer_fixture!(update_dev_packages_updates_repo_url, ignore);
-installer_fixture!(update_dev_to_new_ref_picks_up_changes, ignore);
+installer_fixture!(update_dev_packages_updates_repo_url);
+installer_fixture!(update_dev_to_new_ref_picks_up_changes);
 installer_fixture!(update_downgrades_unstable_packages, ignore);
 installer_fixture!(update_ignore_platform_package_requirement_list);
 installer_fixture!(update_ignore_platform_package_requirement_list_upper_bounds);