$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-Amazon-EC2-Metadata.git /var/lib/mock/f41-build-1287181-23295/root/chroot_tmpdir/scmroot/perl-Net-Amazon-EC2-Metadata
Cloning into '/var/lib/mock/f41-build-1287181-23295/root/chroot_tmpdir/scmroot/perl-Net-Amazon-EC2-Metadata'...
$ git fetch origin 1b2d58e7175d52cf51a59ec679b4e25e1f6b6e6d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-Amazon-EC2-Metadata
 * [new ref]         1b2d58e7175d52cf51a59ec679b4e25e1f6b6e6d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b2d58e Eliminate use of obsolete %patchN syntax (#2283636)