I have uploaded mintty 2.7.9 with the following changes:
* Fixed character attribute handling in scrollback buffer.
* Fixed rendering of some combining characters by heuristic tweaking.
* Avoid misplaced artefacts of combining doubles while moving cursor
* Limiting glyph width checking to symbol ranges to avoid performance
* Unicode 10.0 updates.
* Avoid multiple reporting of font problems.
* Fixed process list in Close prompt (if started from desktop).