$ git clone -n https://src.fedoraproject.org/rpms/R-reticulate.git /var/lib/mock/f41-build-1017420-17932/root/chroot_tmpdir/scmroot/R-reticulate
Cloning into '/var/lib/mock/f41-build-1017420-17932/root/chroot_tmpdir/scmroot/R-reticulate'...
$ git fetch origin 25031ddb3da5ba8e357a5e0544e236757edc6b62:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-reticulate
 * [new ref]         25031ddb3da5ba8e357a5e0544e236757edc6b62 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25031dd Eliminate use of obsolete %patchN syntax (#2283636)