Problem with biblatex and footnotes

Question

I'm currently writing a research paper and want to manage my bibliography with biblatex. Everything is working fine except a minor annoyance:

Whenever I use the \footfullcite[pagenumber]{key} command there is no space between the full citation and the page number in the postnote.

I uploaded a minimal example here

Is there any way to solve this?

EDIT BY LOCKSTEP: Here's a boiled-down example that still shows the issue:

\documentclass{article}

\usepackage[style=authortitle]{biblatex}

\usepackage{filecontents}

\begin{filecontents}{\jobname.bib}
@BOOK{test,
  title = {The Infamous Test},
  publisher = {Testington Test},
  year = {2007},
  author = {John Doe},
  address = {Testville},
}
\end{filecontents}

\addbibresource{\jobname.bib}

\begin{document}

\null\vfill% just for the example

Postnote spacing/punctuation doesn't work for \verb|\footfullcite|,\footfullcite[1-10]{test}
although everything is correct for \verb|\footcite|.\footcite[1-10]{test}

\printbibliography

\end{document}

Answer 1

The missing postnote delimiter is due to a bug in the \finentry definition for \usedriver. For now add the following to your preamble:

\makeatletter
\protected\def\blx@finentry@usedrv{\blx@setunit\relax}
\makeatother

The above macro has been revised a few times to address problems with whitespace and punctuation. If problems with the new definition arise, please feel free to reopen this issue at the github repo.