$ git clone -n https://src.fedoraproject.org/rpms/InsightToolkit.git /var/lib/mock/f41-build-857677-168169/root/chroot_tmpdir/scmroot/InsightToolkit
Cloning into '/var/lib/mock/f41-build-857677-168169/root/chroot_tmpdir/scmroot/InsightToolkit'...
$ git fetch origin 01d48a7aa75b7d52a725082e2292e9e57882f61b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/InsightToolkit
 * [new ref]         01d48a7aa75b7d52a725082e2292e9e57882f61b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 01d48a7 Backport upstream patch for FTBFS with invalid const member func