git checkout -b test master; make check_version; echo "" >> ChangeLog; git commit -a; make check_version
Switched to a new branch 'test'

You need a passphrase to unlock the secret key for
user: "Christian Ehrhardt <christian.ehrhardt@canonical.com>"
4096-bit RSA key, ID BA3E29338280B242, created 2015-08-11

[test b4b58da] foo
 1 file changed, 1 insertion(+)
Error: read-version version 0.7.7-1-gb4b58da not equal to code version 0.7.7
Makefile:64: recipe for target 'check_version' failed
make: *** [check_version] Error 2