events.action: opened
events.author: makortel
events.text: The check for `Track::seedRef()` availability in MultiTrackValidator, added in #14248, was not sufficient. This omission leads to an exception from missing product in the MTV standalone mode ([SWGuideMultiTrackValidator#cmsDriver_MTV_alone_i_e_standalo](https://twiki.cern.ch/twiki/bin/view/CMSPublic/SWGuideMultiTrackValidator#cmsDriver_MTV_alone_i_e_standalo)). Requiring explicitly the availability of the seed product fixes the exception. Thanks to @ebrondol for reporting the bug.
  
  Tested in CMSSW_8_1_0_pre6, no changes expected in standard workflows.
  
  @rovere @VinInn
events.title: Fix to MultiTrackValidator standalone mode
events.type: issue
events.action: created
events.author: VinInn
events.text: @cmsbuild , please test
events.type: comment
events.action: created
events.author: ebrondol
events.text: @kpedro88 is it possible to fit also this in pre8? It would be useful (with another PR that I am testing now) to fix the validation for the phase2 tracking.. We just discover the issue today.
events.type: comment
events.action: created
events.author: kpedro88
events.text: @davidlange6 this seems to be a one-line bug fix, would be nice to put in pre8.
  
  @dmitrijus, @vanbesien please review and sign if possible (I realize it's short notice, but it seems to be a straightforward change).
events.type: comment
data_with_bots.bot: The tests are being triggered in jenkins.
data_with_bots.meta: This message directly preceded comment from bot *cmsbuild* by author *VinInn*:
data_with_bots.text: @cmsbuild , please test
data_without_bots.meta: This message directly preceded comment from bot *cmsbuild* by author *VinInn*:
data_without_bots.text: @cmsbuild , please test