FM-Bench features are symbolic links?

[TLzh]

I extract FM-Bench features using python evaluations.py --config configs/fmbench_eval.yaml，but I find the kpts and descs are symbolic links. So When I run FM-Bench Pipline_Demo, the returned fid of fopen('.keypoints') is -1. And I get Invalid file identifier. Use fopen to generate a valid file identifier.
There is the result when I run file 0006* in the features folder:
0006_l.descriptors: symbolic link to /data_ssd/FM-Bench/Features_aslfeat_ms/TUM/0005_l.descriptors
0006_l.keypoints: symbolic link to /data_ssd/FM-Bench/Features_aslfeat_ms/TUM/0005_l.keypoints
0006_r.descriptors: data
0006_r.keypoints: data