XaoS crashes on recording XaoS animations from examples

[kanurag94]

Recording animations from examples folder crashes xaos.
This however is not the case when the files are in any other directory or subdirectory.
Steps to reproduce

1. Select Replay and choose animation file from examples folder (examples/Hubicka/juliaanim.xaf)
2. Record it

Log:

*** buffer overflow detected ***: terminated
22:25:18: The program has unexpectedly finished.
22:25:18: The process was ended forcefully.

[kanurag94]

Some more information:

The issue seems to be with how XaoS is handling empty file path and examples file path.
I couldn't Load Random Example and starting recording from XaoS startup also produces same error.

XaoS handles these paths using https://github.com/xaos-project/XaoS/blob/master/src/include/xio.h#L50-L52, which gets changed when we select a directory with some other path, thus no error there.