$ git clone -n https://src.fedoraproject.org/rpms/libdatovka.git /var/lib/mock/f39-build-1469295-33839/root/chroot_tmpdir/scmroot/libdatovka
Cloning into '/var/lib/mock/f39-build-1469295-33839/root/chroot_tmpdir/scmroot/libdatovka'...
$ git fetch origin 776ade0626fa67bceb15284602b29a012a3f40a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdatovka
 * [new ref]         776ade0626fa67bceb15284602b29a012a3f40a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 776ade0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild