$ git clone -n https://src.fedoraproject.org/rpms/pidgin-window-merge.git /var/lib/mock/f39-build-1597496-38450/root/chroot_tmpdir/scmroot/pidgin-window-merge
Cloning into '/var/lib/mock/f39-build-1597496-38450/root/chroot_tmpdir/scmroot/pidgin-window-merge'...
$ git fetch origin 92c07fab50f58d87c7607958211b9e4454ef1139:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pidgin-window-merge
 * [new ref]         92c07fab50f58d87c7607958211b9e4454ef1139 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 92c07fa Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild