$ git clone -n https://src.fedoraproject.org/rpms/tigervnc.git /var/lib/mock/f41-build-855965-167429/root/chroot_tmpdir/scmroot/tigervnc
Cloning into '/var/lib/mock/f41-build-855965-167429/root/chroot_tmpdir/scmroot/tigervnc'...
$ git fetch origin e6d8dabf1eae10dba4299d25136bdb1a288df432:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tigervnc
 * [new ref]         e6d8dabf1eae10dba4299d25136bdb1a288df432 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6d8dab Rebuild for ffmpeg 7