$ git clone -n https://src.fedoraproject.org/rpms/mimetreeparser.git /var/lib/mock/f42-build-864016-172037/root/chroot_tmpdir/scmroot/mimetreeparser
Cloning into '/var/lib/mock/f42-build-864016-172037/root/chroot_tmpdir/scmroot/mimetreeparser'...
$ git fetch origin 5619231bfbf8ea39972edd6bf302af2f1c22a13f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mimetreeparser
 * [new ref]         5619231bfbf8ea39972edd6bf302af2f1c22a13f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5619231 24.12.0