$ git clone -n https://src.fedoraproject.org/rpms/mimetreeparser.git /var/lib/mock/f41-build-side-1-3061927-38486/root/chroot_tmpdir/scmroot/mimetreeparser
Cloning into '/var/lib/mock/f41-build-side-1-3061927-38486/root/chroot_tmpdir/scmroot/mimetreeparser'...
$ git fetch origin 7d589bcbe4534a79a40caea28d98b8b76b2e0c89:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mimetreeparser
 * [new ref]         7d589bcbe4534a79a40caea28d98b8b76b2e0c89 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7d589bc Rebuild (qt6)