Could team developers fix multiple 'author' for commits 487128950df6ee433c131b5feaafe81ee86629f4 and 8574988c3a378b4d5861ecaeb0e958657635703b.
Without this to to difficult fork repo and late to track changes on GitHub

home$ git fsck
Checking object directories: 100% (256/256), done.
error in commit 487128950df6ee433c131b5feaafe81ee86629f4: multipleAuthors: invalid format - multiple 'author' lines
error in commit 8574988c3a378b4d5861ecaeb0e958657635703b: multipleAuthors: invalid format - multiple 'author' lines
Checking objects: 100% (306371/306371), done.