$ git clone -n https://src.fedoraproject.org/rpms/passwordsafe.git /var/lib/mock/f45-build-21427-584/root/chroot_tmpdir/scmroot/passwordsafe
Cloning into '/var/lib/mock/f45-build-21427-584/root/chroot_tmpdir/scmroot/passwordsafe'...
$ git fetch origin e07b9f94d00507cf97b0e39a6718fb095e6cff20:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/passwordsafe
 * [new ref]         e07b9f94d00507cf97b0e39a6718fb095e6cff20 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e07b9f9 add .sig file to sources