$ git clone -n https://src.fedoraproject.org/rpms/mingw-libidn2.git /var/lib/mock/f39-build-2337389-59515/root/chroot_tmpdir/scmroot/mingw-libidn2
Cloning into '/var/lib/mock/f39-build-2337389-59515/root/chroot_tmpdir/scmroot/mingw-libidn2'...
$ git fetch origin a0f010df4c05930c54e08568473da2eaa32eb928:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-libidn2
 * [new ref]         a0f010df4c05930c54e08568473da2eaa32eb928 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0f010d Upgrade to 2.3.7 (#2260624)