failure to rename overridden virtual functions

[Jacob-Burckhardt]

Observed behavior

With the cursor on the word joe on line 2, I right-clicked and selected Rename. It failed to rename joe on line 6. Since my program compiled before the rename, ccls should leave my program in a state of successful compilation after the rename.

struct Blob {
   virtual void joe() {} // line 2
};

struct Chunk : public Blob {
   virtual void joe() override {} // line 6
};

int main() {}

Expected behavior

It should have renamed joe on line 6.

Steps to reproduce

1. Put the cursor on "joe" on line 2.
2. In emacs, right-click.
3. Select "Rename"
4. Enter joe2
5. Recompile it.

The compiler says:

a.cpp:6:17: error: 'joe' marked 'override' but does not override any member functions
   virtual void joe() override {} // line 6

System information

• ccls version (built from source, not installed from apt): Debian ccls version 0.20220729-0-g7445891
• clang version: 11.0.1-2
• OS: Debian GNU/Linux 11
• Editor: Emacs 27.1
• Language client (and version): emacs-ccls; git rev ae74a39