When I set the title for a frame to current buffers filename via
(setq-default frame-title-format '("%b")) the title often falls back to
"emacs@" system-name, when the frame is inactive.
I'd expect emacs to keep frame-title, when a frame is inactive, too.
How to keep the title at all times – and only change it, when an other buffer is active? What could cause the unwanted behaviour?
Ideal would be, if I could just keep
frame-title-format '("%b") – but inactive Frames shouldn't revert to
"emacs@" system-name, but keep the filename from active buffer.