Searching a regex of the form (and|the) causes error about vrome HOT 1 OPEN

Still true / almost the same problem now:
if I type « ab| » the result is «a|b» with no bug,
but if I directly type «a|», the tab freeze before I can type «b».
Also true if I type «a*b» : no time to type «b».
I think it's something like «if the empty string is valid, then freeze».
.
I also noticed that if I stop typing anything in regex search bar, after a few seconds it stops consuming my CPU, as expected.
But if I simply move the cursor (arrow keys), it consumes CPU for nothing.

from vrome.