$ git clone -n https://src.fedoraproject.org/rpms/R-dtplyr.git /var/lib/mock/f38-build-side-42-init-devel-950063-28779/root/chroot_tmpdir/scmroot/R-dtplyr
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-950063-28779/root/chroot_tmpdir/scmroot/R-dtplyr'...
$ git fetch origin aa8b5549aef4713aac405b84cec1898a66d76f66:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-dtplyr
 * [new ref]         aa8b5549aef4713aac405b84cec1898a66d76f66 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa8b554 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild