Git - 神秘提交删除代码

Question

我试图找出为什么来自提交的更改消失了。我在一个分支上，历史上约有70个提交：

commit 7000210f4f7abd3f77524cdf1db548d775082e32
Author: John Doe <John.Doe@xyz.com>
Date:   Fri Mar 31 14:53:44 2017 -0400

    CQP3-790 - adding logging for error.

commit 73c4e3c1e65250a6acfb532f7bcadff2f3655a79
Author: Jane Doe <Jane.Doe@xyz.com>
Date:   Fri Mar 31 14:23:43 2017 +0530

    CQP3-415 updated build.xml

查看第二次提交：

$ git show 73c4e3c1e65250a6acfb532f7bcadff2f3655a79
commit 73c4e3c1e65250a6acfb532f7bcadff2f3655a79
Author: Jane Doe <Jane.Doe@xyz.com>
Date:   Fri Mar 31 14:23:43 2017 +0530

    CQP3-415 updated build.xml

diff --git a/build.xml b/build.xml
index c898f15..9ddc1b8 100644
--- a/build.xml
+++ b/build.xml
@@ -102,8 +102,8 @@
                                <include name="*.properties"/>
                        </fileset>
                </copy>
-               <copy todir="${build.dir}/conf/neptune">
-                       <fileset dir="${src.dir}/conf/neptune">
+               <copy todir="${build.dir}/jar/conf/neptune">
+                       <fileset             
    dir="${basedir}/lib/cqp_batch/src/conf/neptune">
                                <include name="*.xml" />
                                <include name="*.properties" />
                        </fileset>

当我对两个提交进行区分时，我会看到删除的代码：

$ git diff 73c4e3c1e65250a6acfb532f7bcadff2f3655a79     \
        7000210f4f7abd3f77524cdf1db548d775082e32 build.xml
diff --git a/build.xml b/build.xml
index 9ddc1b8..f9c4a87 100644
--- a/build.xml
+++ b/build.xml
@@ -102,12 +102,6 @@
                                <include name="*.properties"/>
                        </fileset>
                </copy>
-               <copy todir="${build.dir}/jar/conf/neptune">
-                       <fileset     \
        dir="${basedir}/lib/cqp_batch/src/conf/neptune">
-                               <include name="*.xml" />
-                               <include name="*.properties" />
-                       </fileset>
-               </copy>
                <!-- Added for EmailEngine -->
                <copy todir="${build.dir}/jar/conf/emailengine">
                        <fileset         \
    dir="${basedir}/lib/cqp_batch/src/conf/emailengine">
@@ -230,4 +224,4 @@
                <echo message="Package url is         \
    ${pkg.repo}/batch/tags/${DSTAMP}_${TSTAMP}_src_${source.rev}" />-->
    </target>
 </project>
-
+
\ No newline at end of file

但是，关键是后面的提交与build.xml文件无关：

$ git show 7000210f4f7abd3f77524cdf1db548d775082e32
commit 7000210f4f7abd3f77524cdf1db548d775082e32
Author: John Doe <John.Doe@xyz.com>
Date:   Fri Mar 31 14:53:44 2017 -0400

    CQP3-790 - adding logging for error.

diff --git a//SomeImpl.java b/SomeImpl.java
index 04a4a94..aa399d5 100644
--- 
<snip> 

作为一个谜，我做的时候：

$ git log --full-history -5 build.xml 

它指的是另一个与build.xml无关的提交。

似乎存储库已经发生了变化，但是失去了对提交负责的跟踪。

想法？