~/bibisect_win_44
$ git bisect good
d29d65b3f27a234200f0264378168a320ebcac28 is the first bad commit
commit d29d65b3f27a234200f0264378168a320ebcac28
Author: buildslave <buildslave@tb51.libreoffice.org>
Date:   Fri Apr 15 15:58:49 2016 +0200

    source-hash-5771bde234ec65d79501d5eab938e06dfe43e232

    commit 5771bde234ec65d79501d5eab938e06dfe43e232
    Author:     Zolnai Tamás <tamas.zolnai@collabora.com>
    AuthorDate: Fri Nov 7 16:53:47 2014 +0100
    Commit:     Zolnai Tamás <tamas.zolnai@collabora.com>
    CommitDate: Fri Nov 7 16:54:58 2014 +0100

        Try to fix ambiguity error

        Change-Id: I93cf7497e52d065d00f762f61f79a4e8f8609bfc

:100644 100644 02019dad467cdde684ab8a5a99f68ac6764e8836 8f26e0a6aaf64fba7897c8a6feec35a2cd1e3e62 M      autogen.log
:100644 100644 d95d60a41eb44568521296c36d9a1ea0795eb374 21f288eb69ffe686bcdd72d8de67554cf5b4be4e M      commitmsg
:040000 040000 223d10962db114e0efc7761cc5b4373f85dcc720 fe9b293973476e289bb5086b529bf1c997b84492 M      instdir
:100644 100644 c87d8d70d7c229d337afcafecfa3a8aad6c525ea 79af1a74b289dc98ca1f06f30c7c19ed3534af31 M      make.log

 ~/bibisect_win_44
$ git bisect log
# bad: [489ffd1df414698b6cea9ab03bf6f663b8b5af7e] source-hash-3f94c9e9ddfd807b449f3bb9b232cf2041fa12d2
# good: [8aa9fc9a0c92172593d6cd97662116a965db229d] source-hash-dea4a3b9d7182700abeb4dc756a24a9e8dea8474
git bisect start 'master' 'oldest'
# good: [897913acd244cb6a5d2f4c2da1d625d9b978edb6] source-hash-ac57362b23859591c088e36b7218f4a606dcf3bb
git bisect good 897913acd244cb6a5d2f4c2da1d625d9b978edb6
# good: [860f6172be84c3d801e1e533ab3d12a28815cb4c] source-hash-80c11d648e88f3195f7e4fb465cd6902bcf46867
git bisect good 860f6172be84c3d801e1e533ab3d12a28815cb4c
# good: [fe0abc50dc1e45fd73635394f8df41e0dfc3eec8] source-hash-4e223fab04279c3583689e69fa1342966e81de36
git bisect good fe0abc50dc1e45fd73635394f8df41e0dfc3eec8
# bad: [247d0249eb9794ccedec0ca2e3309b8d970593cc] source-hash-1535f39388223de53e4b923c6f7bb71ee32c1858
git bisect bad 247d0249eb9794ccedec0ca2e3309b8d970593cc
# good: [6cf25fb7af89cc58453d4bda5135e05ca220b1a4] source-hash-ddd549c7873404d0c09aca676a13660404b0bcd2
git bisect good 6cf25fb7af89cc58453d4bda5135e05ca220b1a4
# good: [bfea3b2558107a049b038c756f63169782a2909c] source-hash-a9a9718bb1f64318429562ecdaa3d3763d9e2f4a
git bisect good bfea3b2558107a049b038c756f63169782a2909c
# good: [ff0900d84bf30b5e482abd1c0c0934ec0f2b9c94] source-hash-a9272d35755813838105ae735a1c65043e824c99
git bisect good ff0900d84bf30b5e482abd1c0c0934ec0f2b9c94
# bad: [d29d65b3f27a234200f0264378168a320ebcac28] source-hash-5771bde234ec65d79501d5eab938e06dfe43e232
git bisect bad d29d65b3f27a234200f0264378168a320ebcac28
# good: [7bb53535020d3194253f711804531b7212f5a27c] source-hash-0adb90115596ce69e1d80becdaa39e23197fe454
git bisect good 7bb53535020d3194253f711804531b7212f5a27c
# good: [7dc05ad93e8bfef3bae3241824e1fabe3374c8f0] source-hash-fe272a757b60fdf267539102b0a9927f68e1526a
git bisect good 7dc05ad93e8bfef3bae3241824e1fabe3374c8f0
# first bad commit: [d29d65b3f27a234200f0264378168a320ebcac28] source-hash-5771bde234ec65d79501d5eab938e06dfe43e232