$ git clone -n https://src.fedoraproject.org/rpms/mingw-libgpg-error.git /var/lib/mock/f41-build-side-1-2648142-27335/root/chroot_tmpdir/scmroot/mingw-libgpg-error
Cloning into '/var/lib/mock/f41-build-side-1-2648142-27335/root/chroot_tmpdir/scmroot/mingw-libgpg-error'...
$ git fetch origin 9b520b0ea04d9f15451d3a58527ae3d8046c246f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-libgpg-error
 * [new ref]         9b520b0ea04d9f15451d3a58527ae3d8046c246f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b520b0 convert license to SPDX