Draft: Test the TRUEID branch in withUT-HLT2 MC
Do not aim at merging. Create the MR to trigger the pipeline test result.
To understand why many TRUEID=0 in !1536 (merged)
Take the major scripts from !1111 (closed) and add TRUEID branch to see if the Jpsi, muon TRUEID looks fine.
Edited by Mengzhen Wang