In a situation where a content object with an image attribute contains a wildcard/asterisk in its name (i.e: My Test Content*) and, site.ini, URLTranslator.TransformationGroup is set to urlalias_iri, generating image alias yields incorrect behavior, whereas multiple files for the same image alias are created exponentially.

Steps to reproduce:

1. Enable urlalias_iri, in site.ini:

[URLTranslator]
TransformationGroup=urlalias_iri

2. Create a content object with a name ending in an asterisk, and include an image.
3. View the image through admin interface or front-end, at this point image files should be generated (in, i.e, ezflow_site/storage/images/title*/...
4. Clear your cache, and refresh the page where you are seeing the content object; at this point, additional files will be created for already existing image aliases, suffixed with a number. Repeating this step multiple times will create more image files exponentially.