otb::TestHelper::RegressionTestOgrFile() always says Yes

Description

https://gitlab.orfeo-toolbox.org/orfeotoolbox/otb/blob/develop/Modules/IO/TestKernel/src/otbTestHelper.cxx#L1718 always says Yes because it compares baseline shape file to itsel.

Note: Fixing this bug may invalidate some dashboard tests.

This issue is related to #1778.

Steps to reproduce

• Change apTvFeLineSegmentDetection input image
• ctest -VV -R LineSegmentDetection
• Test passes

Configuration information

Develop branch of OTB on Ubuntu 18.04 LTS development platform.