pgAdmin 4 commit: Fix clear history.

Fix clear history.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=fc782026005b85ecf6ff9cc9602422c936fba44e
Author: Harshal Dhumal <harshal.dhumal@enterprisedb.com>

Modified Files
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web/pgadmin/static/js/history/history_collection.js          |  6 +++++-
web/pgadmin/static/jsx/history/query_history.jsx             | 12 ++++++++++++
.../tools/sqleditor/templates/sqleditor/js/sqleditor.js      |  3 +--
web/regression/javascript/history/history_collection_spec.js |  8 +++++---
4 files changed, 23 insertions(+), 6 deletions(-)