$ git clone -n https://src.fedoraproject.org/rpms/merkuro.git /var/lib/mock/f40-build-2377131-60422/root/chroot_tmpdir/scmroot/merkuro
Cloning into '/var/lib/mock/f40-build-2377131-60422/root/chroot_tmpdir/scmroot/merkuro'...
$ git fetch origin 335b7fc55dd4f5a94e40f1abd18ca121b1731cab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/merkuro
 * [new ref]         335b7fc55dd4f5a94e40f1abd18ca121b1731cab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 335b7fc 24.01.95