Sticky header attempts to render, while not initialized

[vever001]

Bootstraptable version(s) affected

1.22.2

Description

When combining the filter-control and sticky-header, we get an error in console.
See https://live.bootstrap-table.com/code/vever001/17062

Uncaught TypeError: Cannot read properties of undefined (reading 'offset')
    at p.value (bootstrap-table-sticky-header.min.js:10:20501)
    at p.value (bootstrap-table-sticky-header.min.js:10:19051)
    at bootstrap-table-filter-control.min.js:10:49522

It seems the onColumnSearch gets called from here, and calls this.renderStickyHeader() without checking if sticky headers is enabled on the table or not (while the sticky header may not have been initialized).

Example(s)

https://live.bootstrap-table.com/code/vever001/17062

Possible Solutions

Add a check for this.options.stickyHeader ?

Additional Context

FWIW we made a temp workaround as follows for now:

$.BootstrapTable = class extends $.BootstrapTable {
  renderStickyHeader () {
    if (this.options.stickyHeader) {
      super.renderStickyHeader();
    }
  }
}

[wenzhixin]

A PR is welcome.