servenv: fix var shadowing caused by short variable declaration #7702
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Description
In #7563, we fixed the panic reported in #7261. However, there is a bug in that PR, as reported by @yangxuanjia here.
This PR fixes that bug.
Tested manually that master vttablet shuts down when tablet record is deleted, using local_example (
examples/local).Related Issue(s)
#7261
Checklist
Deployment Notes
Impacted Areas in Vitess
Components that this PR will affect: