some queries produce show "discard changes" warning

[eug3nix]

...when they should not
examples (postgres):
0. navigate to some view in DB object tree

1. select drop view context menu ite
2. execute templated query
3. try closing the tab

observed:
Are you sure you wish to discard unsaved query changes? is shown

expected:
no warning

[eug3nix]

verified.