$ git clone -n https://src.fedoraproject.org/rpms/mimetreeparser.git /var/lib/mock/f42-build-side-1-3569482-46747/root/chroot_tmpdir/scmroot/mimetreeparser
Cloning into '/var/lib/mock/f42-build-side-1-3569482-46747/root/chroot_tmpdir/scmroot/mimetreeparser'...
$ git fetch origin f5a64bb3a16648d23e8d6ef41dd8ff6503ddd900:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mimetreeparser
 * [new ref]         f5a64bb3a16648d23e8d6ef41dd8ff6503ddd900 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5a64bb 25.04.2