$ git clone -n https://src.fedoraproject.org/rpms/perl-Template-Toolkit-Simple.git /var/lib/mock/f41-build-908012-17036/root/chroot_tmpdir/scmroot/perl-Template-Toolkit-Simple
Cloning into '/var/lib/mock/f41-build-908012-17036/root/chroot_tmpdir/scmroot/perl-Template-Toolkit-Simple'...
$ git fetch origin f291c131e45b68d10fb074f2cdaa97381764e1e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Template-Toolkit-Simple
 * [new ref]         f291c131e45b68d10fb074f2cdaa97381764e1e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f291c13 Eliminate use of obsolete %patchN syntax (#2283636)