$ git clone -n https://src.fedoraproject.org/rpms/sdl-crypto.git /var/lib/mock/f41-build-828818-155912/root/chroot_tmpdir/scmroot/sdl-crypto
Cloning into '/var/lib/mock/f41-build-828818-155912/root/chroot_tmpdir/scmroot/sdl-crypto'...
$ git fetch origin faabd2ba73de269bf051f00f056a264179bc6441:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sdl-crypto
 * [new ref]         faabd2ba73de269bf051f00f056a264179bc6441 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at faabd2b Properly obsolete the old crypto package