$ git clone -n https://src.fedoraproject.org/rpms/kf5-kbookmarks.git /var/lib/mock/f40-build-787950-134971/root/chroot_tmpdir/scmroot/kf5-kbookmarks
Cloning into '/var/lib/mock/f40-build-787950-134971/root/chroot_tmpdir/scmroot/kf5-kbookmarks'...
$ git fetch origin 2b3c9e011876e8d7574ad276478c464605734ef1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kbookmarks
 * [new ref]         2b3c9e011876e8d7574ad276478c464605734ef1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b3c9e0 5.115.0