$ git clone -n https://src.fedoraproject.org/rpms/perl-Convert-PEM.git /var/lib/mock/f41-build-1115192-20214/root/chroot_tmpdir/scmroot/perl-Convert-PEM
Cloning into '/var/lib/mock/f41-build-1115192-20214/root/chroot_tmpdir/scmroot/perl-Convert-PEM'...
$ git fetch origin 079ae6301c8e6ee758a440b15db9d5ae1836142b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Convert-PEM
 * [new ref]         079ae6301c8e6ee758a440b15db9d5ae1836142b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 079ae63 Eliminate use of obsolete %patchN syntax (#2283636)