Crash when opening several pdfs consecutively

[GoogleCodeExporter]

When opening one pdf after another, after around 3-4 pdfs I get the following 
Error: 

E/libmupdf(5321): error: cannot lseek: Bad file number
E/libmupdf(5321): warning: read error; treating as end of file
E/libmupdf(5321): warning: premature end of data in flate filter
I have not found a bug tracked in Mu so far, so was wondering, whether anyone 
else has experienced this or knows a solution.

I am using APV 0.4.0.2. on Android 4.2.2. 

The error is not dependent on the specific pdf, as I cycle through pdf 1-4 and 
sometimes they open successfully, sometimes the same pdf crashes.

Original issue reported on code.google.com by [email protected] on 12 Feb 2015 at 4:40