$ git clone -n https://src.fedoraproject.org/rpms/e2fsprogs.git /var/lib/mock/f41-build-1018527-17947/root/chroot_tmpdir/scmroot/e2fsprogs
Cloning into '/var/lib/mock/f41-build-1018527-17947/root/chroot_tmpdir/scmroot/e2fsprogs'...
$ git fetch origin e3e2a91eae31d22b1dc7f98715dd4acbae0f179a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/e2fsprogs
 * [new ref]         e3e2a91eae31d22b1dc7f98715dd4acbae0f179a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e3e2a91 Eliminate use of obsolete %patchN syntax (#2283636)