$ git clone -n https://src.fedoraproject.org/rpms/mimetreeparser.git /var/lib/mock/f40-build-2377138-60422/root/chroot_tmpdir/scmroot/mimetreeparser
Cloning into '/var/lib/mock/f40-build-2377138-60422/root/chroot_tmpdir/scmroot/mimetreeparser'...
$ git fetch origin 483496f729af8c5a197b616f5db0ae3ff06a1643:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mimetreeparser
 * [new ref]         483496f729af8c5a197b616f5db0ae3ff06a1643 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 483496f 24.01.95