innerring: do not panic in Head

[fyrchik]

Signed-off-by: Evgenii Stratonikov evgeniy@morphbits.ru

[sami-nspcc]

I have recieved a notification of a new pull request. I am starting the build of images and binaries for further testing.

[sami-nspcc]

I am running integration tests

[codecov]

Codecov Report

Merging #2069 (75b371d) into support/v0.34 (402bbba) will not change coverage.
The diff coverage is n/a.

❗ Current head 75b371d differs from pull request most recent head 84acee4. Consider uploading reports for the commit 84acee4 to get more accurate results

@@              Coverage Diff               @@
##           support/v0.34    #2069   +/-   ##
==============================================
  Coverage          30.67%   30.67%           
==============================================
  Files                380      380           
  Lines              28071    28071           
==============================================
  Hits                8610     8610           
  Misses             18722    18722           
  Partials             739      739           

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[carpawell]

Deserves a changelog record.

Also, the commit msg could be improved.

[sami-nspcc]

I have recieved a notification of a new pull request. I am starting the build of images and binaries for further testing.

[sami-nspcc]

I am running integration tests

[sami-nspcc]

Test run is finished. Please download the tarball from st*.t5.fs.neo.org: FszwwAx3VznDysQGxBUMRj1zj3zp8VcohorVDnunrviV/BvjHzzFJnUbh4PMFkjHBVQeRE4infUz4b2EevuTjgDA7 Untar and use allure open to watch the report

[sami-nspcc]

Test run is finished. Please download the tarball from st*.t5.fs.neo.org: FszwwAx3VznDysQGxBUMRj1zj3zp8VcohorVDnunrviV/ddNXDovcMShnTmRcBiScFmEnPexni22d5pARvR19Fek Untar and use allure open to watch the report