Fix runtime warnings from TGeant3

While accessing geometry information from TGeant3 a level outside of the geometry hierarchy was requested. Exit from loop when needed information is found.

refs #3092

changed milestone to %OCT23

added BugFix Simulation labels

requested review from @e.clerkin

assigned to @p.-a.loizeau

Dear @d.smith, @fweig, @l.chlad, @f.uhlig, @p.-a.loizeau, @se.gorbunov, @s.zharko, @v.friese,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

I tested this commit and can confirm that the removed the warnings (issue 1) as reported https://redmine.cbm.gsi.de/issues/3092

approved this merge request

added 2 commits

• 01be99b1 - 1 commit from branch computing:master
• 174ea7f4 - Fix runtime warnings from TGeant3

Compare with previous version

enabled an automatic merge when the pipeline for 174ea7f4 succeeds

merged