Allow line break in BibLaTeX output

Question

I have an BibLaTeX entry which causes in \printbibliography command a overful hbox. How can I tell BibLaTex that a line break is allowed without a minus symbol?

In my case I have a text like ABC.learning. I want to allow BibLaTex to break the line after the dot.

Answer 1

My solution is to add a 0pt hspace.

ABC.\hspace{0pt}learning