/usr/share/librecad/library/elektro/diode-iso/ is in librecad-data 2.1.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/librecad/library/elektro/diode-iso/Diode-Bridge.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Diac.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Gunn.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-LED-Horiz.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-LED.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-PIN.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Photo-Horiz.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Photo.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Power.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-SCS.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Schottky.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Shockley.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Thy-SCR.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Triac.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Tunnel.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Varactor(USA).dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Varactor-Varicap.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Varicap.dxf
/usr/share/librecad/library/elektro/diode-iso/Diode-Zener.dxf