QueryField: Fix wrong cursor position on autocomplete

[svennergr]

What this PR does / why we need it:
A user who selects an auto-complete suggestion in the Loki code query editor for filters will have their cursor placed outside the quotation marks instead of inside.

Which issue(s) this PR fixes:

Fixes https://github.com/grafana/support-escalations/issues/3935

Special notes for your reviewer:

Steps to replicate the issue:

1. On https://play.grafana.com/ use the Loki data source on Explore (https://play.grafana.org/goto/JMl5GknVz?orgId=1)
2. Use the code query editor
3. Begin typing any query, e.g. {host="appfelstrudel"}
4. Add a pipe + any filter, e.g. {host="appfelstrudel"} | regexp ""
5. IMPORTANT: to replicate the behavior, when typing out regexp, click the auto-complete suggestion
6. After using the auto-complete suggestion, you'll notice your cursor is automatically placed outside the "" instead of inside, which would be expected

With the fix:

Screen.Recording.2022-09-21.at.16.00.27.mov

[grafanabot]

Drone build failed: https://drone.grafana.net/grafana/grafana-enterprise/34442

[daniel-leibold]

Hi all,

will this fix also be backported to 8.5.14? Like #54535
We are still on 8.5.

Thanks for any hint.

[svennergr]

Hi @daniel-leibold,

I don't think we will backport this issue as the impact of the bug is not as critical as #54535.

Thanks for your understanding.

[muffl0n]

Version bump in helm-chart: grafana/helm-charts/pull/1872