Perfectly illustrates why CHDK-Shell defaults to keeping dowloaded archives ... Okay - rub it in. I was cursing the day I asked you to put in the function to delete old versions. As one of my mentors once told me "Be careful what you ask for, you might just get it.".
Sorry, that was kind of insensitive. But I was not referring to the 'Remove old builds ...' function,
but to 'Archive Processing Mode' (also in SVN Options). If you still had that in the default mode,
i.e. 'Download/Unzip/Keep', you could have easily restored your original trunks by repeated
use of 'Unzip Archive ..' , because 'Remove old builds ...' only removes the trunkXXXX folders,
not the original zips (then again, one would probably set 'Archive Processing Mode' to
'Download/Unzip/Delete' when trying to minimise disk space consumption ....)