SAN DIEGO — A San Diego-based Marine Corps reservist is under investigation by the Marines after membership interviews with a white supremacist hate group were leaked by activists and highlighted in a subsequent Southern Poverty Law Center report on the high percentage of applicants that claimed military ties. In its report, the SPLC found that one in five applicants to the hate group Patriot Front claimed to either be on active duty or veterans of the military. It highlighted one applicant who said he was a San Diego-based Marine veteran. Local activists noted that Cpl. Victor Krvaric, 21, sh…