One one of my Magento 22.214.171.124 installs I need to revert a 1533 patch, but original SUPEE 1533 is not available in the root folder (probably was deleted after it was installed in 2015). I am checking installed patches in app/etc/applied.patches.list and it shows as SUPEE-1533_EE_1.13_v1.patch
However I went to magento and downloaded SUPEE-1533 to upload to Root folder and make a revert and I noticed that recently downloaded SUPEE 1533 for 126.96.36.199 is this: PATCH_SUPEE-1533_EE_1.12.x_v1-2015-02-10-08-19-16.sh see difference in bold. 1.13 and 1.12.
Is it safe to upload recent PATCH_SUPEE-1533_EE_1.12 patch and Revert it? I assume it should revert changes made by original patch "SUPEE-1533_EE_1.13_v1.patch correct ?