$ git clone -n https://src.fedoraproject.org/rpms/gdcm.git /var/lib/mock/f40-build-735312-106334/root/chroot_tmpdir/scmroot/gdcm
Cloning into '/var/lib/mock/f40-build-735312-106334/root/chroot_tmpdir/scmroot/gdcm'...
$ git fetch origin 0e766b9f0a90f7bb239a368a1e9113b5f4eed901:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gdcm
 * [new ref]         0e766b9f0a90f7bb239a368a1e9113b5f4eed901 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0e766b9 Rebuild for poppler 23.08.0