Steps to reproduce:

Preparation:

1. Prepare a eZ Publish 4.5/eZ Find 2.4 installation, fully patched;
2. Enable delayed indexing;
3. Make sure Solr service is runnnig;

Issue:

1. Create the following content structure:

Home
	Articles (folder)
		Test1 (article)
			Test2 (article)
	Articles 2 (folder)

2. Run content indexing cronjob:

$ php runcronjobs.php ezfindexcontent

3. Go to Solr's admin interface (default is http://localhost:8983/solr/admin/) and search for "Test2". It returns:

...
<str name="meta_main_url_alias_ms">Articles/Test1/Test2</str>
...

4. Go back to eZ Publish's admin interface, and move "Test1" article to "Articles 2" folder;
5. Run content indexing cronjob;
6. Go to Solr's admin interface and search for "Test2". It still returns:

<str name="meta_main_url_alias_ms">Articles/Test1/Test2</str>

...which is wrong, should return:

<str name="meta_main_url_alias_ms">Articles-2/Test1/Test2</str>