[automerger] Use canonical path before checking access. am: 93a200d703 am: 57a180e240 am: 4b9d6ef495 am: 8545432013 am: d6b1b74e29
am: 3267bf1236

Change-Id: Ie08d77dc03bc998f00e0b2d762b27b9fe1fbe198