Errors written to stdout/stderr when saving read-only files

The following errors are written to either stdout or stderr when saving a read-only file:

SOFT ASSERT: "m_finalized" in file savefile.cpp, line 46
QFile::remove: Empty or null file name

Steps to reproduce:
1. Open a read-only file in the editor.
2. Make a change.
3. Press Ctrl + Shift + S

I have the auto-save modified files feature enabled with an interval of 5 minutes.