isearch-forward-regexp lags when using helm-gtags on cygwin
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I am using emacs & helm & helm-gtags on cygwin in combination with global compiled from source for cygwin. I observed the quite annoying behaviour that isearch-forward-regexp significantly lags if a search fails and helm-gtags is activated.
This seems to be somehow caused by helm-gtags-update-tags - isearch-forward-regexp only lags upon failed searches when I saved the current buffer before (i.e. helm-gtags-update-tags has already been called when helm-gtags-auto-update is set) or after explicitly calling helm-gtags-auto-update (if helm-gtags-auto-update is set to nil). However, I have no clue how helm-gtags-auto-update and isearch-forward-regexp interact.
Could anybody out there confirm this behaviour or provide some insights?
Aside from that helm-gtags really works great!